Home / 12,854.20-19,281.30-5,942.20

Finding the Fourth Proportional to 12,854.20, 19,281.30 and 5,942.20

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Solution

The fourth proportional to 12,854.20, 19,281.30 and 5,942.20 is: 8,913.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,854.20 : 19,281.30 = 5,942.20 : x
  2. Step 2: Convert to fraction form
    12,854.20/19,281.30 = 5,942.20/x
  3. Step 3: Cross multiply
    12,854.20x = 19,281.30 × 5,942.20
  4. Step 4: Simplify right side
    12,854.20x = 114,573,340.86
  5. Step 5: Solve for x
    x = 114,573,340.86/12,854.20
  6. Step 6: Final answer
    x = 8,913.30

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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.