Home / 13,712.31-20,572.65-5,810.76

Finding the Fourth Proportional to 13,712.31, 20,572.65 and 5,810.76

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Solution

The fourth proportional to 13,712.31, 20,572.65 and 5,810.76 is: 8,717.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,712.31 : 20,572.65 = 5,810.76 : x
  2. Step 2: Convert to fraction form
    13,712.31/20,572.65 = 5,810.76/x
  3. Step 3: Cross multiply
    13,712.31x = 20,572.65 × 5,810.76
  4. Step 4: Simplify right side
    13,712.31x = 119,542,731.71
  5. Step 5: Solve for x
    x = 119,542,731.71/13,712.31
  6. Step 6: Final answer
    x = 8,717.91

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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.