Home / 15,367.28-21,207.45-8,652.86

Finding the Fourth Proportional to 15,367.28, 21,207.45 and 8,652.86

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Solution

The fourth proportional to 15,367.28, 21,207.45 and 8,652.86 is: 11,941.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,367.28 : 21,207.45 = 8,652.86 : x
  2. Step 2: Convert to fraction form
    15,367.28/21,207.45 = 8,652.86/x
  3. Step 3: Cross multiply
    15,367.28x = 21,207.45 × 8,652.86
  4. Step 4: Simplify right side
    15,367.28x = 183,505,095.81
  5. Step 5: Solve for x
    x = 183,505,095.81/15,367.28
  6. Step 6: Final answer
    x = 11,941.29

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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.