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Finding the Fourth Proportional to 8,646.02, 12,961.56 and 7,338.32

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Solution

The fourth proportional to 8,646.02, 12,961.56 and 7,338.32 is: 11,001.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,646.02 : 12,961.56 = 7,338.32 : x
  2. Step 2: Convert to fraction form
    8,646.02/12,961.56 = 7,338.32/x
  3. Step 3: Cross multiply
    8,646.02x = 12,961.56 × 7,338.32
  4. Step 4: Simplify right side
    8,646.02x = 95,116,074.98
  5. Step 5: Solve for x
    x = 95,116,074.98/8,646.02
  6. Step 6: Final answer
    x = 11,001.14

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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.