Home / 19,818.18-29,731.66-6,670.13

Finding the Fourth Proportional to 19,818.18, 29,731.66 and 6,670.13

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Solution

The fourth proportional to 19,818.18, 29,731.66 and 6,670.13 is: 10,006.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,818.18 : 29,731.66 = 6,670.13 : x
  2. Step 2: Convert to fraction form
    19,818.18/29,731.66 = 6,670.13/x
  3. Step 3: Cross multiply
    19,818.18x = 29,731.66 × 6,670.13
  4. Step 4: Simplify right side
    19,818.18x = 198,313,871.98
  5. Step 5: Solve for x
    x = 198,313,871.98/19,818.18
  6. Step 6: Final answer
    x = 10,006.66

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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.