Home / 13,719.98-18,933.50-7,432.38

Finding the Fourth Proportional to 13,719.98, 18,933.50 and 7,432.38

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Solution

The fourth proportional to 13,719.98, 18,933.50 and 7,432.38 is: 10,256.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,719.98 : 18,933.50 = 7,432.38 : x
  2. Step 2: Convert to fraction form
    13,719.98/18,933.50 = 7,432.38/x
  3. Step 3: Cross multiply
    13,719.98x = 18,933.50 × 7,432.38
  4. Step 4: Simplify right side
    13,719.98x = 140,720,966.73
  5. Step 5: Solve for x
    x = 140,720,966.73/13,719.98
  6. Step 6: Final answer
    x = 10,256.65

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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.