Home / 6,531.60-9,031.32-6,426.09

Finding the Fourth Proportional to 6,531.60, 9,031.32 and 6,426.09

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Solution

The fourth proportional to 6,531.60, 9,031.32 and 6,426.09 is: 8,885.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,531.60 : 9,031.32 = 6,426.09 : x
  2. Step 2: Convert to fraction form
    6,531.60/9,031.32 = 6,426.09/x
  3. Step 3: Cross multiply
    6,531.60x = 9,031.32 × 6,426.09
  4. Step 4: Simplify right side
    6,531.60x = 58,036,029.98
  5. Step 5: Solve for x
    x = 58,036,029.98/6,531.60
  6. Step 6: Final answer
    x = 8,885.43

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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.