Home / 10,644.16-14,691.36-6,911.68

Finding the Fourth Proportional to 10,644.16, 14,691.36 and 6,911.68

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Solution

The fourth proportional to 10,644.16, 14,691.36 and 6,911.68 is: 9,539.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,644.16 : 14,691.36 = 6,911.68 : x
  2. Step 2: Convert to fraction form
    10,644.16/14,691.36 = 6,911.68/x
  3. Step 3: Cross multiply
    10,644.16x = 14,691.36 × 6,911.68
  4. Step 4: Simplify right side
    10,644.16x = 101,541,979.08
  5. Step 5: Solve for x
    x = 101,541,979.08/10,644.16
  6. Step 6: Final answer
    x = 9,539.69

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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.