Home / 13,572.59-20,360.17-4,212.71

Finding the Fourth Proportional to 13,572.59, 20,360.17 and 4,212.71

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Solution

The fourth proportional to 13,572.59, 20,360.17 and 4,212.71 is: 6,319.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,572.59 : 20,360.17 = 4,212.71 : x
  2. Step 2: Convert to fraction form
    13,572.59/20,360.17 = 4,212.71/x
  3. Step 3: Cross multiply
    13,572.59x = 20,360.17 × 4,212.71
  4. Step 4: Simplify right side
    13,572.59x = 85,771,491.76
  5. Step 5: Solve for x
    x = 85,771,491.76/13,572.59
  6. Step 6: Final answer
    x = 6,319.46

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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.