Home / 13,723.87-20,569.91-6,312.77

Finding the Fourth Proportional to 13,723.87, 20,569.91 and 6,312.77

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Solution

The fourth proportional to 13,723.87, 20,569.91 and 6,312.77 is: 9,461.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.87 : 20,569.91 = 6,312.77 : x
  2. Step 2: Convert to fraction form
    13,723.87/20,569.91 = 6,312.77/x
  3. Step 3: Cross multiply
    13,723.87x = 20,569.91 × 6,312.77
  4. Step 4: Simplify right side
    13,723.87x = 129,853,130.61
  5. Step 5: Solve for x
    x = 129,853,130.61/13,723.87
  6. Step 6: Final answer
    x = 9,461.85

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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.