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Finding the Fourth Proportional to 9,805.98, 14,700.70 and 4,255.15

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Solution

The fourth proportional to 9,805.98, 14,700.70 and 4,255.15 is: 6,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,805.98 : 14,700.70 = 4,255.15 : x
  2. Step 2: Convert to fraction form
    9,805.98/14,700.70 = 4,255.15/x
  3. Step 3: Cross multiply
    9,805.98x = 14,700.70 × 4,255.15
  4. Step 4: Simplify right side
    9,805.98x = 62,553,683.61
  5. Step 5: Solve for x
    x = 62,553,683.61/9,805.98
  6. Step 6: Final answer
    x = 6,379.14

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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.