Home / 18,138.60-25,031.88-10,181.52

Finding the Fourth Proportional to 18,138.60, 25,031.88 and 10,181.52

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Solution

The fourth proportional to 18,138.60, 25,031.88 and 10,181.52 is: 14,050.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,138.60 : 25,031.88 = 10,181.52 : x
  2. Step 2: Convert to fraction form
    18,138.60/25,031.88 = 10,181.52/x
  3. Step 3: Cross multiply
    18,138.60x = 25,031.88 × 10,181.52
  4. Step 4: Simplify right side
    18,138.60x = 254,862,586.86
  5. Step 5: Solve for x
    x = 254,862,586.86/18,138.60
  6. Step 6: Final answer
    x = 14,050.84

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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.