Home / 18,426.16-25,427.38-10,872.80

Finding the Fourth Proportional to 18,426.16, 25,427.38 and 10,872.80

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Solution

The fourth proportional to 18,426.16, 25,427.38 and 10,872.80 is: 15,004.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,426.16 : 25,427.38 = 10,872.80 : x
  2. Step 2: Convert to fraction form
    18,426.16/25,427.38 = 10,872.80/x
  3. Step 3: Cross multiply
    18,426.16x = 25,427.38 × 10,872.80
  4. Step 4: Simplify right side
    18,426.16x = 276,466,817.26
  5. Step 5: Solve for x
    x = 276,466,817.26/18,426.16
  6. Step 6: Final answer
    x = 15,004.04

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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.