Home / 18,238.12-25,167.57-10,280.47

Finding the Fourth Proportional to 18,238.12, 25,167.57 and 10,280.47

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Solution

The fourth proportional to 18,238.12, 25,167.57 and 10,280.47 is: 14,186.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,238.12 : 25,167.57 = 10,280.47 : x
  2. Step 2: Convert to fraction form
    18,238.12/25,167.57 = 10,280.47/x
  3. Step 3: Cross multiply
    18,238.12x = 25,167.57 × 10,280.47
  4. Step 4: Simplify right side
    18,238.12x = 258,734,448.36
  5. Step 5: Solve for x
    x = 258,734,448.36/18,238.12
  6. Step 6: Final answer
    x = 14,186.46

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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.