Home / 12,947.18-19,404.48-5,542.88

Finding the Fourth Proportional to 12,947.18, 19,404.48 and 5,542.88

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Solution

The fourth proportional to 12,947.18, 19,404.48 and 5,542.88 is: 8,307.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,947.18 : 19,404.48 = 5,542.88 : x
  2. Step 2: Convert to fraction form
    12,947.18/19,404.48 = 5,542.88/x
  3. Step 3: Cross multiply
    12,947.18x = 19,404.48 × 5,542.88
  4. Step 4: Simplify right side
    12,947.18x = 107,556,704.10
  5. Step 5: Solve for x
    x = 107,556,704.10/12,947.18
  6. Step 6: Final answer
    x = 8,307.35

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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.