Home / 15,298.20-21,109.77-8,582.94

Finding the Fourth Proportional to 15,298.20, 21,109.77 and 8,582.94

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Solution

The fourth proportional to 15,298.20, 21,109.77 and 8,582.94 is: 11,843.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,298.20 : 21,109.77 = 8,582.94 : x
  2. Step 2: Convert to fraction form
    15,298.20/21,109.77 = 8,582.94/x
  3. Step 3: Cross multiply
    15,298.20x = 21,109.77 × 8,582.94
  4. Step 4: Simplify right side
    15,298.20x = 181,183,889.32
  5. Step 5: Solve for x
    x = 181,183,889.32/15,298.20
  6. Step 6: Final answer
    x = 11,843.48

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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.