Home / 13,857.17-20,781.35-4,494.99

Finding the Fourth Proportional to 13,857.17, 20,781.35 and 4,494.99

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Solution

The fourth proportional to 13,857.17, 20,781.35 and 4,494.99 is: 6,741.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,857.17 : 20,781.35 = 4,494.99 : x
  2. Step 2: Convert to fraction form
    13,857.17/20,781.35 = 4,494.99/x
  3. Step 3: Cross multiply
    13,857.17x = 20,781.35 × 4,494.99
  4. Step 4: Simplify right side
    13,857.17x = 93,411,937.96
  5. Step 5: Solve for x
    x = 93,411,937.96/13,857.17
  6. Step 6: Final answer
    x = 6,741.06

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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.