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Finding the Fourth Proportional to 9,862.50, 14,775.12 and 7,645.14

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Solution

The fourth proportional to 9,862.50, 14,775.12 and 7,645.14 is: 11,453.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,862.50 : 14,775.12 = 7,645.14 : x
  2. Step 2: Convert to fraction form
    9,862.50/14,775.12 = 7,645.14/x
  3. Step 3: Cross multiply
    9,862.50x = 14,775.12 × 7,645.14
  4. Step 4: Simplify right side
    9,862.50x = 112,957,860.92
  5. Step 5: Solve for x
    x = 112,957,860.92/9,862.50
  6. Step 6: Final answer
    x = 11,453.27

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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.