Home / 18,719.24-25,836.90-12,346.98

Finding the Fourth Proportional to 18,719.24, 25,836.90 and 12,346.98

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Solution

The fourth proportional to 18,719.24, 25,836.90 and 12,346.98 is: 17,041.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,719.24 : 25,836.90 = 12,346.98 : x
  2. Step 2: Convert to fraction form
    18,719.24/25,836.90 = 12,346.98/x
  3. Step 3: Cross multiply
    18,719.24x = 25,836.90 × 12,346.98
  4. Step 4: Simplify right side
    18,719.24x = 319,007,687.56
  5. Step 5: Solve for x
    x = 319,007,687.56/18,719.24
  6. Step 6: Final answer
    x = 17,041.70

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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.