Home / 13,781.41-20,671.65-5,990.23

Finding the Fourth Proportional to 13,781.41, 20,671.65 and 5,990.23

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Solution

The fourth proportional to 13,781.41, 20,671.65 and 5,990.23 is: 8,985.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,781.41 : 20,671.65 = 5,990.23 : x
  2. Step 2: Convert to fraction form
    13,781.41/20,671.65 = 5,990.23/x
  3. Step 3: Cross multiply
    13,781.41x = 20,671.65 × 5,990.23
  4. Step 4: Simplify right side
    13,781.41x = 123,827,937.98
  5. Step 5: Solve for x
    x = 123,827,937.98/13,781.41
  6. Step 6: Final answer
    x = 8,985.14

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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.