Home / 18,235.60-25,155.48-12,560.59

Finding the Fourth Proportional to 18,235.60, 25,155.48 and 12,560.59

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Solution

The fourth proportional to 18,235.60, 25,155.48 and 12,560.59 is: 17,326.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.60 : 25,155.48 = 12,560.59 : x
  2. Step 2: Convert to fraction form
    18,235.60/25,155.48 = 12,560.59/x
  3. Step 3: Cross multiply
    18,235.60x = 25,155.48 × 12,560.59
  4. Step 4: Simplify right side
    18,235.60x = 315,967,670.53
  5. Step 5: Solve for x
    x = 315,967,670.53/18,235.60
  6. Step 6: Final answer
    x = 17,326.97

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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.