Home / 11,167.12-15,410.80-6,131.20

Finding the Fourth Proportional to 11,167.12, 15,410.80 and 6,131.20

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Solution

The fourth proportional to 11,167.12, 15,410.80 and 6,131.20 is: 8,461.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.12 : 15,410.80 = 6,131.20 : x
  2. Step 2: Convert to fraction form
    11,167.12/15,410.80 = 6,131.20/x
  3. Step 3: Cross multiply
    11,167.12x = 15,410.80 × 6,131.20
  4. Step 4: Simplify right side
    11,167.12x = 94,486,696.96
  5. Step 5: Solve for x
    x = 94,486,696.96/11,167.12
  6. Step 6: Final answer
    x = 8,461.15

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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.