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Finding the Fourth Proportional to 8,617.36, 12,927.35 and 4,398.30

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Solution

The fourth proportional to 8,617.36, 12,927.35 and 4,398.30 is: 6,598.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,617.36 : 12,927.35 = 4,398.30 : x
  2. Step 2: Convert to fraction form
    8,617.36/12,927.35 = 4,398.30/x
  3. Step 3: Cross multiply
    8,617.36x = 12,927.35 × 4,398.30
  4. Step 4: Simplify right side
    8,617.36x = 56,858,373.83
  5. Step 5: Solve for x
    x = 56,858,373.83/8,617.36
  6. Step 6: Final answer
    x = 6,598.12

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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.