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Finding the Fourth Proportional to 8,862.72, 13,288.50 and 4,700.10

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Solution

The fourth proportional to 8,862.72, 13,288.50 and 4,700.10 is: 7,047.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,862.72 : 13,288.50 = 4,700.10 : x
  2. Step 2: Convert to fraction form
    8,862.72/13,288.50 = 4,700.10/x
  3. Step 3: Cross multiply
    8,862.72x = 13,288.50 × 4,700.10
  4. Step 4: Simplify right side
    8,862.72x = 62,457,278.85
  5. Step 5: Solve for x
    x = 62,457,278.85/8,862.72
  6. Step 6: Final answer
    x = 7,047.19

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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.