Home / 13,412.32-18,517.35-12,575.50

Finding the Fourth Proportional to 13,412.32, 18,517.35 and 12,575.50

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Solution

The fourth proportional to 13,412.32, 18,517.35 and 12,575.50 is: 17,362.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,412.32 : 18,517.35 = 12,575.50 : x
  2. Step 2: Convert to fraction form
    13,412.32/18,517.35 = 12,575.50/x
  3. Step 3: Cross multiply
    13,412.32x = 18,517.35 × 12,575.50
  4. Step 4: Simplify right side
    13,412.32x = 232,864,934.93
  5. Step 5: Solve for x
    x = 232,864,934.93/13,412.32
  6. Step 6: Final answer
    x = 17,362.02

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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.