Home / 12,374.32-18,560.40-3,611.20

Finding the Fourth Proportional to 12,374.32, 18,560.40 and 3,611.20

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Solution

The fourth proportional to 12,374.32, 18,560.40 and 3,611.20 is: 5,416.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.32 : 18,560.40 = 3,611.20 : x
  2. Step 2: Convert to fraction form
    12,374.32/18,560.40 = 3,611.20/x
  3. Step 3: Cross multiply
    12,374.32x = 18,560.40 × 3,611.20
  4. Step 4: Simplify right side
    12,374.32x = 67,025,316.48
  5. Step 5: Solve for x
    x = 67,025,316.48/12,374.32
  6. Step 6: Final answer
    x = 5,416.48

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.