Home / 18,631.04-27,946.56-8,100.68

Finding the Fourth Proportional to 18,631.04, 27,946.56 and 8,100.68

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Solution

The fourth proportional to 18,631.04, 27,946.56 and 8,100.68 is: 12,151.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,631.04 : 27,946.56 = 8,100.68 : x
  2. Step 2: Convert to fraction form
    18,631.04/27,946.56 = 8,100.68/x
  3. Step 3: Cross multiply
    18,631.04x = 27,946.56 × 8,100.68
  4. Step 4: Simplify right side
    18,631.04x = 226,386,139.66
  5. Step 5: Solve for x
    x = 226,386,139.66/18,631.04
  6. Step 6: Final answer
    x = 12,151.02

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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.