Home / 10,031.66-13,843.60-5,781.16

Finding the Fourth Proportional to 10,031.66, 13,843.60 and 5,781.16

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Solution

The fourth proportional to 10,031.66, 13,843.60 and 5,781.16 is: 7,977.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,031.66 : 13,843.60 = 5,781.16 : x
  2. Step 2: Convert to fraction form
    10,031.66/13,843.60 = 5,781.16/x
  3. Step 3: Cross multiply
    10,031.66x = 13,843.60 × 5,781.16
  4. Step 4: Simplify right side
    10,031.66x = 80,032,066.58
  5. Step 5: Solve for x
    x = 80,032,066.58/10,031.66
  6. Step 6: Final answer
    x = 7,977.95

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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.