Home / 18,499.13-25,529.40-10,115.63

Finding the Fourth Proportional to 18,499.13, 25,529.40 and 10,115.63

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Solution

The fourth proportional to 18,499.13, 25,529.40 and 10,115.63 is: 13,959.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,499.13 : 25,529.40 = 10,115.63 : x
  2. Step 2: Convert to fraction form
    18,499.13/25,529.40 = 10,115.63/x
  3. Step 3: Cross multiply
    18,499.13x = 25,529.40 × 10,115.63
  4. Step 4: Simplify right side
    18,499.13x = 258,245,836.88
  5. Step 5: Solve for x
    x = 258,245,836.88/18,499.13
  6. Step 6: Final answer
    x = 13,959.89

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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.