Home / 18,426.78-25,429.02-10,471.65

Finding the Fourth Proportional to 18,426.78, 25,429.02 and 10,471.65

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Solution

The fourth proportional to 18,426.78, 25,429.02 and 10,471.65 is: 14,450.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.78 : 25,429.02 = 10,471.65 : x
  2. Step 2: Convert to fraction form
    18,426.78/25,429.02 = 10,471.65/x
  3. Step 3: Cross multiply
    18,426.78x = 25,429.02 × 10,471.65
  4. Step 4: Simplify right side
    18,426.78x = 266,283,797.28
  5. Step 5: Solve for x
    x = 266,283,797.28/18,426.78
  6. Step 6: Final answer
    x = 14,450.91

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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.