Home / 36,185.90-54,265.52-12,487.40

Finding the Fourth Proportional to 36,185.90, 54,265.52 and 12,487.40

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Solution

The fourth proportional to 36,185.90, 54,265.52 and 12,487.40 is: 18,726.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    36,185.90 : 54,265.52 = 12,487.40 : x
  2. Step 2: Convert to fraction form
    36,185.90/54,265.52 = 12,487.40/x
  3. Step 3: Cross multiply
    36,185.90x = 54,265.52 × 12,487.40
  4. Step 4: Simplify right side
    36,185.90x = 677,635,182.71
  5. Step 5: Solve for x
    x = 677,635,182.71/36,185.90
  6. Step 6: Final answer
    x = 18,726.50

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.