Home / 8,288.48-12,423.96-2,740.40

Finding the Fourth Proportional to 8,288.48, 12,423.96 and 2,740.40

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Solution

The fourth proportional to 8,288.48, 12,423.96 and 2,740.40 is: 4,107.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,288.48 : 12,423.96 = 2,740.40 : x
  2. Step 2: Convert to fraction form
    8,288.48/12,423.96 = 2,740.40/x
  3. Step 3: Cross multiply
    8,288.48x = 12,423.96 × 2,740.40
  4. Step 4: Simplify right side
    8,288.48x = 34,046,619.98
  5. Step 5: Solve for x
    x = 34,046,619.98/8,288.48
  6. Step 6: Final answer
    x = 4,107.70

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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.