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Finding the Fourth Proportional to 9,950.38, 14,913.25 and 8,720.19

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Solution

The fourth proportional to 9,950.38, 14,913.25 and 8,720.19 is: 13,069.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,950.38 : 14,913.25 = 8,720.19 : x
  2. Step 2: Convert to fraction form
    9,950.38/14,913.25 = 8,720.19/x
  3. Step 3: Cross multiply
    9,950.38x = 14,913.25 × 8,720.19
  4. Step 4: Simplify right side
    9,950.38x = 130,046,351.72
  5. Step 5: Solve for x
    x = 130,046,351.72/9,950.38
  6. Step 6: Final answer
    x = 13,069.49

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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.