Home / 12,360.88-17,049.45-7,642.36

Finding the Fourth Proportional to 12,360.88, 17,049.45 and 7,642.36

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Solution

The fourth proportional to 12,360.88, 17,049.45 and 7,642.36 is: 10,541.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,360.88 : 17,049.45 = 7,642.36 : x
  2. Step 2: Convert to fraction form
    12,360.88/17,049.45 = 7,642.36/x
  3. Step 3: Cross multiply
    12,360.88x = 17,049.45 × 7,642.36
  4. Step 4: Simplify right side
    12,360.88x = 130,298,034.70
  5. Step 5: Solve for x
    x = 130,298,034.70/12,360.88
  6. Step 6: Final answer
    x = 10,541.16

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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.