Home / 8,439.41-12,655.20-4,930.46

Finding the Fourth Proportional to 8,439.41, 12,655.20 and 4,930.46

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Solution

The fourth proportional to 8,439.41, 12,655.20 and 4,930.46 is: 7,393.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,439.41 : 12,655.20 = 4,930.46 : x
  2. Step 2: Convert to fraction form
    8,439.41/12,655.20 = 4,930.46/x
  3. Step 3: Cross multiply
    8,439.41x = 12,655.20 × 4,930.46
  4. Step 4: Simplify right side
    8,439.41x = 62,395,957.39
  5. Step 5: Solve for x
    x = 62,395,957.39/8,439.41
  6. Step 6: Final answer
    x = 7,393.40

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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.