Home / 12,132.92-18,192.20-4,728.74

Finding the Fourth Proportional to 12,132.92, 18,192.20 and 4,728.74

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Solution

The fourth proportional to 12,132.92, 18,192.20 and 4,728.74 is: 7,090.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,132.92 : 18,192.20 = 4,728.74 : x
  2. Step 2: Convert to fraction form
    12,132.92/18,192.20 = 4,728.74/x
  3. Step 3: Cross multiply
    12,132.92x = 18,192.20 × 4,728.74
  4. Step 4: Simplify right side
    12,132.92x = 86,026,160.29
  5. Step 5: Solve for x
    x = 86,026,160.29/12,132.92
  6. Step 6: Final answer
    x = 7,090.31

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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.