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Finding the Fourth Proportional to 8,697.00, 12,002.07 and 5,160.24

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Solution

The fourth proportional to 8,697.00, 12,002.07 and 5,160.24 is: 7,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,697.00 : 12,002.07 = 5,160.24 : x
  2. Step 2: Convert to fraction form
    8,697.00/12,002.07 = 5,160.24/x
  3. Step 3: Cross multiply
    8,697.00x = 12,002.07 × 5,160.24
  4. Step 4: Simplify right side
    8,697.00x = 61,933,581.05
  5. Step 5: Solve for x
    x = 61,933,581.05/8,697.00
  6. Step 6: Final answer
    x = 7,121.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.