Home / 8,681.20-13,031.40-4,793.20

Finding the Fourth Proportional to 8,681.20, 13,031.40 and 4,793.20

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Solution

The fourth proportional to 8,681.20, 13,031.40 and 4,793.20 is: 7,195.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,681.20 : 13,031.40 = 4,793.20 : x
  2. Step 2: Convert to fraction form
    8,681.20/13,031.40 = 4,793.20/x
  3. Step 3: Cross multiply
    8,681.20x = 13,031.40 × 4,793.20
  4. Step 4: Simplify right side
    8,681.20x = 62,462,106.48
  5. Step 5: Solve for x
    x = 62,462,106.48/8,681.20
  6. Step 6: Final answer
    x = 7,195.10

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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.