Home / 8,253.40-12,380.64-3,875.08

Finding the Fourth Proportional to 8,253.40, 12,380.64 and 3,875.08

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Solution

The fourth proportional to 8,253.40, 12,380.64 and 3,875.08 is: 5,812.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.40 : 12,380.64 = 3,875.08 : x
  2. Step 2: Convert to fraction form
    8,253.40/12,380.64 = 3,875.08/x
  3. Step 3: Cross multiply
    8,253.40x = 12,380.64 × 3,875.08
  4. Step 4: Simplify right side
    8,253.40x = 47,975,970.45
  5. Step 5: Solve for x
    x = 47,975,970.45/8,253.40
  6. Step 6: Final answer
    x = 5,812.87

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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.