Home / 19,146.20-28,707.54-7,445.78

Finding the Fourth Proportional to 19,146.20, 28,707.54 and 7,445.78

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Solution

The fourth proportional to 19,146.20, 28,707.54 and 7,445.78 is: 11,164.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,146.20 : 28,707.54 = 7,445.78 : x
  2. Step 2: Convert to fraction form
    19,146.20/28,707.54 = 7,445.78/x
  3. Step 3: Cross multiply
    19,146.20x = 28,707.54 × 7,445.78
  4. Step 4: Simplify right side
    19,146.20x = 213,750,027.18
  5. Step 5: Solve for x
    x = 213,750,027.18/19,146.20
  6. Step 6: Final answer
    x = 11,164.10

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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.