Home / 15,295.25-21,106.44-8,580.89

Finding the Fourth Proportional to 15,295.25, 21,106.44 and 8,580.89

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Solution

The fourth proportional to 15,295.25, 21,106.44 and 8,580.89 is: 11,841.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,295.25 : 21,106.44 = 8,580.89 : x
  2. Step 2: Convert to fraction form
    15,295.25/21,106.44 = 8,580.89/x
  3. Step 3: Cross multiply
    15,295.25x = 21,106.44 × 8,580.89
  4. Step 4: Simplify right side
    15,295.25x = 181,112,092.70
  5. Step 5: Solve for x
    x = 181,112,092.70/15,295.25
  6. Step 6: Final answer
    x = 11,841.07

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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.