Home / 15,445.59-21,314.23-8,732.71

Finding the Fourth Proportional to 15,445.59, 21,314.23 and 8,732.71

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Solution

The fourth proportional to 15,445.59, 21,314.23 and 8,732.71 is: 12,050.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,445.59 : 21,314.23 = 8,732.71 : x
  2. Step 2: Convert to fraction form
    15,445.59/21,314.23 = 8,732.71/x
  3. Step 3: Cross multiply
    15,445.59x = 21,314.23 × 8,732.71
  4. Step 4: Simplify right side
    15,445.59x = 186,130,989.46
  5. Step 5: Solve for x
    x = 186,130,989.46/15,445.59
  6. Step 6: Final answer
    x = 12,050.75

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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.