Home / 8,353.50-12,530.40-3,908.70

Finding the Fourth Proportional to 8,353.50, 12,530.40 and 3,908.70

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Solution

The fourth proportional to 8,353.50, 12,530.40 and 3,908.70 is: 5,863.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,353.50 : 12,530.40 = 3,908.70 : x
  2. Step 2: Convert to fraction form
    8,353.50/12,530.40 = 3,908.70/x
  3. Step 3: Cross multiply
    8,353.50x = 12,530.40 × 3,908.70
  4. Step 4: Simplify right side
    8,353.50x = 48,977,574.48
  5. Step 5: Solve for x
    x = 48,977,574.48/8,353.50
  6. Step 6: Final answer
    x = 5,863.12

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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.