Home / 19,819.13-29,707.73-7,331.13

Finding the Fourth Proportional to 19,819.13, 29,707.73 and 7,331.13

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Solution

The fourth proportional to 19,819.13, 29,707.73 and 7,331.13 is: 10,988.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,819.13 : 29,707.73 = 7,331.13 : x
  2. Step 2: Convert to fraction form
    19,819.13/29,707.73 = 7,331.13/x
  3. Step 3: Cross multiply
    19,819.13x = 29,707.73 × 7,331.13
  4. Step 4: Simplify right side
    19,819.13x = 217,791,230.63
  5. Step 5: Solve for x
    x = 217,791,230.63/19,819.13
  6. Step 6: Final answer
    x = 10,988.94

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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.