Home / 14,010.28-19,330.83-7,959.20

Finding the Fourth Proportional to 14,010.28, 19,330.83 and 7,959.20

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Solution

The fourth proportional to 14,010.28, 19,330.83 and 7,959.20 is: 10,981.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,010.28 : 19,330.83 = 7,959.20 : x
  2. Step 2: Convert to fraction form
    14,010.28/19,330.83 = 7,959.20/x
  3. Step 3: Cross multiply
    14,010.28x = 19,330.83 × 7,959.20
  4. Step 4: Simplify right side
    14,010.28x = 153,857,845.48
  5. Step 5: Solve for x
    x = 153,857,845.48/14,010.28
  6. Step 6: Final answer
    x = 10,981.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.