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Finding the Fourth Proportional to 9,129.69, 12,598.95 and 5,150.79

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Solution

The fourth proportional to 9,129.69, 12,598.95 and 5,150.79 is: 7,108.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,129.69 : 12,598.95 = 5,150.79 : x
  2. Step 2: Convert to fraction form
    9,129.69/12,598.95 = 5,150.79/x
  3. Step 3: Cross multiply
    9,129.69x = 12,598.95 × 5,150.79
  4. Step 4: Simplify right side
    9,129.69x = 64,894,545.67
  5. Step 5: Solve for x
    x = 64,894,545.67/9,129.69
  6. Step 6: Final answer
    x = 7,108.08

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.