Home / 10,380.20-14,325-5,664.92

Finding the Fourth Proportional to 10,380.20, 14,325 and 5,664.92

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Solution

The fourth proportional to 10,380.20, 14,325 and 5,664.92 is: 7,817.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.20 : 14,325 = 5,664.92 : x
  2. Step 2: Convert to fraction form
    10,380.20/14,325 = 5,664.92/x
  3. Step 3: Cross multiply
    10,380.20x = 14,325 × 5,664.92
  4. Step 4: Simplify right side
    10,380.20x = 81,149,979
  5. Step 5: Solve for x
    x = 81,149,979/10,380.20
  6. Step 6: Final answer
    x = 7,817.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.