Home / 13,932.34-19,226.76-7,644.70

Finding the Fourth Proportional to 13,932.34, 19,226.76 and 7,644.70

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Solution

The fourth proportional to 13,932.34, 19,226.76 and 7,644.70 is: 10,549.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,932.34 : 19,226.76 = 7,644.70 : x
  2. Step 2: Convert to fraction form
    13,932.34/19,226.76 = 7,644.70/x
  3. Step 3: Cross multiply
    13,932.34x = 19,226.76 × 7,644.70
  4. Step 4: Simplify right side
    13,932.34x = 146,982,812.17
  5. Step 5: Solve for x
    x = 146,982,812.17/13,932.34
  6. Step 6: Final answer
    x = 10,549.76

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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.