Home / 15,295.68-21,108.24-8,582.76

Finding the Fourth Proportional to 15,295.68, 21,108.24 and 8,582.76

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Solution

The fourth proportional to 15,295.68, 21,108.24 and 8,582.76 is: 11,844.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.68 : 21,108.24 = 8,582.76 : x
  2. Step 2: Convert to fraction form
    15,295.68/21,108.24 = 8,582.76/x
  3. Step 3: Cross multiply
    15,295.68x = 21,108.24 × 8,582.76
  4. Step 4: Simplify right side
    15,295.68x = 181,166,957.94
  5. Step 5: Solve for x
    x = 181,166,957.94/15,295.68
  6. Step 6: Final answer
    x = 11,844.32

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Half scale
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Double scale
Find fourth proportional to 15,296.68, 21,109.62 and 8,583.76
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.