Home / 18,235.35-25,155.13-12,560.34

Finding the Fourth Proportional to 18,235.35, 25,155.13 and 12,560.34

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Solution

The fourth proportional to 18,235.35, 25,155.13 and 12,560.34 is: 17,326.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,235.35 : 25,155.13 = 12,560.34 : x
  2. Step 2: Convert to fraction form
    18,235.35/25,155.13 = 12,560.34/x
  3. Step 3: Cross multiply
    18,235.35x = 25,155.13 × 12,560.34
  4. Step 4: Simplify right side
    18,235.35x = 315,956,985.54
  5. Step 5: Solve for x
    x = 315,956,985.54/18,235.35
  6. Step 6: Final answer
    x = 17,326.62

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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.