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Finding the Fourth Proportional to 8,603.64, 12,907.68 and 6,132.36

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Solution

The fourth proportional to 8,603.64, 12,907.68 and 6,132.36 is: 9,200.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,603.64 : 12,907.68 = 6,132.36 : x
  2. Step 2: Convert to fraction form
    8,603.64/12,907.68 = 6,132.36/x
  3. Step 3: Cross multiply
    8,603.64x = 12,907.68 × 6,132.36
  4. Step 4: Simplify right side
    8,603.64x = 79,154,540.52
  5. Step 5: Solve for x
    x = 79,154,540.52/8,603.64
  6. Step 6: Final answer
    x = 9,200.12

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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.