Home / 12,701.80-17,531.43-8,453.05

Finding the Fourth Proportional to 12,701.80, 17,531.43 and 8,453.05

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Solution

The fourth proportional to 12,701.80, 17,531.43 and 8,453.05 is: 11,667.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,701.80 : 17,531.43 = 8,453.05 : x
  2. Step 2: Convert to fraction form
    12,701.80/17,531.43 = 8,453.05/x
  3. Step 3: Cross multiply
    12,701.80x = 17,531.43 × 8,453.05
  4. Step 4: Simplify right side
    12,701.80x = 148,193,978.83
  5. Step 5: Solve for x
    x = 148,193,978.83/12,701.80
  6. Step 6: Final answer
    x = 11,667.16

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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.