Home / 13,331.76-19,990.95-4,443.96

Finding the Fourth Proportional to 13,331.76, 19,990.95 and 4,443.96

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Solution

The fourth proportional to 13,331.76, 19,990.95 and 4,443.96 is: 6,663.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.76 : 19,990.95 = 4,443.96 : x
  2. Step 2: Convert to fraction form
    13,331.76/19,990.95 = 4,443.96/x
  3. Step 3: Cross multiply
    13,331.76x = 19,990.95 × 4,443.96
  4. Step 4: Simplify right side
    13,331.76x = 88,838,982.16
  5. Step 5: Solve for x
    x = 88,838,982.16/13,331.76
  6. Step 6: Final answer
    x = 6,663.71

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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.