Home / 12,730.52-17,558.70-8,531.48

Finding the Fourth Proportional to 12,730.52, 17,558.70 and 8,531.48

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Solution

The fourth proportional to 12,730.52, 17,558.70 and 8,531.48 is: 11,767.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,730.52 : 17,558.70 = 8,531.48 : x
  2. Step 2: Convert to fraction form
    12,730.52/17,558.70 = 8,531.48/x
  3. Step 3: Cross multiply
    12,730.52x = 17,558.70 × 8,531.48
  4. Step 4: Simplify right side
    12,730.52x = 149,801,697.88
  5. Step 5: Solve for x
    x = 149,801,697.88/12,730.52
  6. Step 6: Final answer
    x = 11,767.13

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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.