Home / 18,127.48-27,191.34-4,981.24

Finding the Fourth Proportional to 18,127.48, 27,191.34 and 4,981.24

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Solution

The fourth proportional to 18,127.48, 27,191.34 and 4,981.24 is: 7,471.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,127.48 : 27,191.34 = 4,981.24 : x
  2. Step 2: Convert to fraction form
    18,127.48/27,191.34 = 4,981.24/x
  3. Step 3: Cross multiply
    18,127.48x = 27,191.34 × 4,981.24
  4. Step 4: Simplify right side
    18,127.48x = 135,446,590.46
  5. Step 5: Solve for x
    x = 135,446,590.46/18,127.48
  6. Step 6: Final answer
    x = 7,471.89

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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.