Home / 19,890.86-29,829.92-6,560.87

Finding the Fourth Proportional to 19,890.86, 29,829.92 and 6,560.87

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Solution

The fourth proportional to 19,890.86, 29,829.92 and 6,560.87 is: 9,839.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,890.86 : 29,829.92 = 6,560.87 : x
  2. Step 2: Convert to fraction form
    19,890.86/29,829.92 = 6,560.87/x
  3. Step 3: Cross multiply
    19,890.86x = 29,829.92 × 6,560.87
  4. Step 4: Simplify right side
    19,890.86x = 195,710,045.28
  5. Step 5: Solve for x
    x = 195,710,045.28/19,890.86
  6. Step 6: Final answer
    x = 9,839.19

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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.