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Finding the Fourth Proportional to 8,959.68, 13,424.40 and 6,349.68

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Solution

The fourth proportional to 8,959.68, 13,424.40 and 6,349.68 is: 9,513.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.68 : 13,424.40 = 6,349.68 : x
  2. Step 2: Convert to fraction form
    8,959.68/13,424.40 = 6,349.68/x
  3. Step 3: Cross multiply
    8,959.68x = 13,424.40 × 6,349.68
  4. Step 4: Simplify right side
    8,959.68x = 85,240,644.19
  5. Step 5: Solve for x
    x = 85,240,644.19/8,959.68
  6. Step 6: Final answer
    x = 9,513.80

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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.