Home / 18,840.60-28,264.56-7,162.04

Finding the Fourth Proportional to 18,840.60, 28,264.56 and 7,162.04

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Solution

The fourth proportional to 18,840.60, 28,264.56 and 7,162.04 is: 10,744.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,840.60 : 28,264.56 = 7,162.04 : x
  2. Step 2: Convert to fraction form
    18,840.60/28,264.56 = 7,162.04/x
  3. Step 3: Cross multiply
    18,840.60x = 28,264.56 × 7,162.04
  4. Step 4: Simplify right side
    18,840.60x = 202,431,909.30
  5. Step 5: Solve for x
    x = 202,431,909.30/18,840.60
  6. Step 6: Final answer
    x = 10,744.45

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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.