Home / 11,531.07-15,913.68-6,426.91

Finding the Fourth Proportional to 11,531.07, 15,913.68 and 6,426.91

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Solution

The fourth proportional to 11,531.07, 15,913.68 and 6,426.91 is: 8,869.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,531.07 : 15,913.68 = 6,426.91 : x
  2. Step 2: Convert to fraction form
    11,531.07/15,913.68 = 6,426.91/x
  3. Step 3: Cross multiply
    11,531.07x = 15,913.68 × 6,426.91
  4. Step 4: Simplify right side
    11,531.07x = 102,275,789.13
  5. Step 5: Solve for x
    x = 102,275,789.13/11,531.07
  6. Step 6: Final answer
    x = 8,869.58

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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.