Home / 18,125.12-25,009.88-10,165.52

Finding the Fourth Proportional to 18,125.12, 25,009.88 and 10,165.52

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Solution

The fourth proportional to 18,125.12, 25,009.88 and 10,165.52 is: 14,026.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.12 : 25,009.88 = 10,165.52 : x
  2. Step 2: Convert to fraction form
    18,125.12/25,009.88 = 10,165.52/x
  3. Step 3: Cross multiply
    18,125.12x = 25,009.88 × 10,165.52
  4. Step 4: Simplify right side
    18,125.12x = 254,238,435.34
  5. Step 5: Solve for x
    x = 254,238,435.34/18,125.12
  6. Step 6: Final answer
    x = 14,026.86

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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.