Home / 15,287.32-21,097.38-8,575.10

Finding the Fourth Proportional to 15,287.32, 21,097.38 and 8,575.10

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Solution

The fourth proportional to 15,287.32, 21,097.38 and 8,575.10 is: 11,834.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.32 : 21,097.38 = 8,575.10 : x
  2. Step 2: Convert to fraction form
    15,287.32/21,097.38 = 8,575.10/x
  3. Step 3: Cross multiply
    15,287.32x = 21,097.38 × 8,575.10
  4. Step 4: Simplify right side
    15,287.32x = 180,912,143.24
  5. Step 5: Solve for x
    x = 180,912,143.24/15,287.32
  6. Step 6: Final answer
    x = 11,834.13

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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.