Home / 12,520.46-17,259.80-9,531.08

Finding the Fourth Proportional to 12,520.46, 17,259.80 and 9,531.08

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Solution

The fourth proportional to 12,520.46, 17,259.80 and 9,531.08 is: 13,138.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,520.46 : 17,259.80 = 9,531.08 : x
  2. Step 2: Convert to fraction form
    12,520.46/17,259.80 = 9,531.08/x
  3. Step 3: Cross multiply
    12,520.46x = 17,259.80 × 9,531.08
  4. Step 4: Simplify right side
    12,520.46x = 164,504,534.58
  5. Step 5: Solve for x
    x = 164,504,534.58/12,520.46
  6. Step 6: Final answer
    x = 13,138.86

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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.