Home / 15,151.88-20,903.79-11,182.46

Finding the Fourth Proportional to 15,151.88, 20,903.79 and 11,182.46

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Solution

The fourth proportional to 15,151.88, 20,903.79 and 11,182.46 is: 15,427.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,151.88 : 20,903.79 = 11,182.46 : x
  2. Step 2: Convert to fraction form
    15,151.88/20,903.79 = 11,182.46/x
  3. Step 3: Cross multiply
    15,151.88x = 20,903.79 × 11,182.46
  4. Step 4: Simplify right side
    15,151.88x = 233,755,795.52
  5. Step 5: Solve for x
    x = 233,755,795.52/15,151.88
  6. Step 6: Final answer
    x = 15,427.51

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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.