Home / 13,317.92-19,957.85-9,780.18

Finding the Fourth Proportional to 13,317.92, 19,957.85 and 9,780.18

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Solution

The fourth proportional to 13,317.92, 19,957.85 and 9,780.18 is: 14,656.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,317.92 : 19,957.85 = 9,780.18 : x
  2. Step 2: Convert to fraction form
    13,317.92/19,957.85 = 9,780.18/x
  3. Step 3: Cross multiply
    13,317.92x = 19,957.85 × 9,780.18
  4. Step 4: Simplify right side
    13,317.92x = 195,191,390.61
  5. Step 5: Solve for x
    x = 195,191,390.61/13,317.92
  6. Step 6: Final answer
    x = 14,656.29

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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.