Home / 12,159.60-18,272.40-6,617.04

Finding the Fourth Proportional to 12,159.60, 18,272.40 and 6,617.04

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Solution

The fourth proportional to 12,159.60, 18,272.40 and 6,617.04 is: 9,943.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,159.60 : 18,272.40 = 6,617.04 : x
  2. Step 2: Convert to fraction form
    12,159.60/18,272.40 = 6,617.04/x
  3. Step 3: Cross multiply
    12,159.60x = 18,272.40 × 6,617.04
  4. Step 4: Simplify right side
    12,159.60x = 120,909,201.70
  5. Step 5: Solve for x
    x = 120,909,201.70/12,159.60
  6. Step 6: Final answer
    x = 9,943.52

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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.