Home / 18,621.70-25,700.29-11,549.18

Finding the Fourth Proportional to 18,621.70, 25,700.29 and 11,549.18

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Solution

The fourth proportional to 18,621.70, 25,700.29 and 11,549.18 is: 15,939.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.70 : 25,700.29 = 11,549.18 : x
  2. Step 2: Convert to fraction form
    18,621.70/25,700.29 = 11,549.18/x
  3. Step 3: Cross multiply
    18,621.70x = 25,700.29 × 11,549.18
  4. Step 4: Simplify right side
    18,621.70x = 296,817,310.64
  5. Step 5: Solve for x
    x = 296,817,310.64/18,621.70
  6. Step 6: Final answer
    x = 15,939.33

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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.