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Finding the Fourth Proportional to 9,089.28, 12,545.28 and 5,364.48

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Solution

The fourth proportional to 9,089.28, 12,545.28 and 5,364.48 is: 7,404.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,089.28 : 12,545.28 = 5,364.48 : x
  2. Step 2: Convert to fraction form
    9,089.28/12,545.28 = 5,364.48/x
  3. Step 3: Cross multiply
    9,089.28x = 12,545.28 × 5,364.48
  4. Step 4: Simplify right side
    9,089.28x = 67,298,903.65
  5. Step 5: Solve for x
    x = 67,298,903.65/9,089.28
  6. Step 6: Final answer
    x = 7,404.21

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1.5x scale

Why These Related Problems?

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