Home / 14,278.24-21,417.20-7,957.12

Finding the Fourth Proportional to 14,278.24, 21,417.20 and 7,957.12

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Solution

The fourth proportional to 14,278.24, 21,417.20 and 7,957.12 is: 11,935.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.24 : 21,417.20 = 7,957.12 : x
  2. Step 2: Convert to fraction form
    14,278.24/21,417.20 = 7,957.12/x
  3. Step 3: Cross multiply
    14,278.24x = 21,417.20 × 7,957.12
  4. Step 4: Simplify right side
    14,278.24x = 170,419,230.46
  5. Step 5: Solve for x
    x = 170,419,230.46/14,278.24
  6. Step 6: Final answer
    x = 11,935.59

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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.