Home / 18,357.47-25,337.25-11,189.72

Finding the Fourth Proportional to 18,357.47, 25,337.25 and 11,189.72

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Solution

The fourth proportional to 18,357.47, 25,337.25 and 11,189.72 is: 15,444.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,357.47 : 25,337.25 = 11,189.72 : x
  2. Step 2: Convert to fraction form
    18,357.47/25,337.25 = 11,189.72/x
  3. Step 3: Cross multiply
    18,357.47x = 25,337.25 × 11,189.72
  4. Step 4: Simplify right side
    18,357.47x = 283,516,733.07
  5. Step 5: Solve for x
    x = 283,516,733.07/18,357.47
  6. Step 6: Final answer
    x = 15,444.22

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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.