Home / 15,386.28-23,079.42-8,807.91

Finding the Fourth Proportional to 15,386.28, 23,079.42 and 8,807.91

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Solution

The fourth proportional to 15,386.28, 23,079.42 and 8,807.91 is: 13,211.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,386.28 : 23,079.42 = 8,807.91 : x
  2. Step 2: Convert to fraction form
    15,386.28/23,079.42 = 8,807.91/x
  3. Step 3: Cross multiply
    15,386.28x = 23,079.42 × 8,807.91
  4. Step 4: Simplify right side
    15,386.28x = 203,281,454.21
  5. Step 5: Solve for x
    x = 203,281,454.21/15,386.28
  6. Step 6: Final answer
    x = 13,211.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.