Home / 18,389.16-25,382.25-10,839.87

Finding the Fourth Proportional to 18,389.16, 25,382.25 and 10,839.87

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Solution

The fourth proportional to 18,389.16, 25,382.25 and 10,839.87 is: 14,962.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.16 : 25,382.25 = 10,839.87 : x
  2. Step 2: Convert to fraction form
    18,389.16/25,382.25 = 10,839.87/x
  3. Step 3: Cross multiply
    18,389.16x = 25,382.25 × 10,839.87
  4. Step 4: Simplify right side
    18,389.16x = 275,140,290.31
  5. Step 5: Solve for x
    x = 275,140,290.31/18,389.16
  6. Step 6: Final answer
    x = 14,962.09

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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.