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Finding the Fourth Proportional to 8,673.52, 13,008.80 and 3,125.76

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Solution

The fourth proportional to 8,673.52, 13,008.80 and 3,125.76 is: 4,688.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,673.52 : 13,008.80 = 3,125.76 : x
  2. Step 2: Convert to fraction form
    8,673.52/13,008.80 = 3,125.76/x
  3. Step 3: Cross multiply
    8,673.52x = 13,008.80 × 3,125.76
  4. Step 4: Simplify right side
    8,673.52x = 40,662,386.69
  5. Step 5: Solve for x
    x = 40,662,386.69/8,673.52
  6. Step 6: Final answer
    x = 4,688.11

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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.