Home / 18,359.42-25,343.76-12,399.17

Finding the Fourth Proportional to 18,359.42, 25,343.76 and 12,399.17

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Solution

The fourth proportional to 18,359.42, 25,343.76 and 12,399.17 is: 17,116.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,359.42 : 25,343.76 = 12,399.17 : x
  2. Step 2: Convert to fraction form
    18,359.42/25,343.76 = 12,399.17/x
  3. Step 3: Cross multiply
    18,359.42x = 25,343.76 × 12,399.17
  4. Step 4: Simplify right side
    18,359.42x = 314,241,588.68
  5. Step 5: Solve for x
    x = 314,241,588.68/18,359.42
  6. Step 6: Final answer
    x = 17,116.10

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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.