Home / 18,125.91-25,032.74-12,475.25

Finding the Fourth Proportional to 18,125.91, 25,032.74 and 12,475.25

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Solution

The fourth proportional to 18,125.91, 25,032.74 and 12,475.25 is: 17,228.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,125.91 : 25,032.74 = 12,475.25 : x
  2. Step 2: Convert to fraction form
    18,125.91/25,032.74 = 12,475.25/x
  3. Step 3: Cross multiply
    18,125.91x = 25,032.74 × 12,475.25
  4. Step 4: Simplify right side
    18,125.91x = 312,289,502.15
  5. Step 5: Solve for x
    x = 312,289,502.15/18,125.91
  6. Step 6: Final answer
    x = 17,228.90

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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.