Home / 12,959.60-19,439.40-5,562.80

Finding the Fourth Proportional to 12,959.60, 19,439.40 and 5,562.80

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Solution

The fourth proportional to 12,959.60, 19,439.40 and 5,562.80 is: 8,344.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,959.60 : 19,439.40 = 5,562.80 : x
  2. Step 2: Convert to fraction form
    12,959.60/19,439.40 = 5,562.80/x
  3. Step 3: Cross multiply
    12,959.60x = 19,439.40 × 5,562.80
  4. Step 4: Simplify right side
    12,959.60x = 108,137,494.32
  5. Step 5: Solve for x
    x = 108,137,494.32/12,959.60
  6. Step 6: Final answer
    x = 8,344.20

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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.