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Finding the Fourth Proportional to 8,902.92, 13,363.05 and 4,289.16

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Solution

The fourth proportional to 8,902.92, 13,363.05 and 4,289.16 is: 6,437.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,902.92 : 13,363.05 = 4,289.16 : x
  2. Step 2: Convert to fraction form
    8,902.92/13,363.05 = 4,289.16/x
  3. Step 3: Cross multiply
    8,902.92x = 13,363.05 × 4,289.16
  4. Step 4: Simplify right side
    8,902.92x = 57,316,259.54
  5. Step 5: Solve for x
    x = 57,316,259.54/8,902.92
  6. Step 6: Final answer
    x = 6,437.92

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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.