Home / 18,342.16-25,309.18-10,382.70

Finding the Fourth Proportional to 18,342.16, 25,309.18 and 10,382.70

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Solution

The fourth proportional to 18,342.16, 25,309.18 and 10,382.70 is: 14,326.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,342.16 : 25,309.18 = 10,382.70 : x
  2. Step 2: Convert to fraction form
    18,342.16/25,309.18 = 10,382.70/x
  3. Step 3: Cross multiply
    18,342.16x = 25,309.18 × 10,382.70
  4. Step 4: Simplify right side
    18,342.16x = 262,777,623.19
  5. Step 5: Solve for x
    x = 262,777,623.19/18,342.16
  6. Step 6: Final answer
    x = 14,326.43

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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.