Home / 10,447.20-15,671.04-2,656.08

Finding the Fourth Proportional to 10,447.20, 15,671.04 and 2,656.08

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Solution

The fourth proportional to 10,447.20, 15,671.04 and 2,656.08 is: 3,984.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.20 : 15,671.04 = 2,656.08 : x
  2. Step 2: Convert to fraction form
    10,447.20/15,671.04 = 2,656.08/x
  3. Step 3: Cross multiply
    10,447.20x = 15,671.04 × 2,656.08
  4. Step 4: Simplify right side
    10,447.20x = 41,623,535.92
  5. Step 5: Solve for x
    x = 41,623,535.92/10,447.20
  6. Step 6: Final answer
    x = 3,984.18

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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.