Home / 10,380.12-14,323.36-5,902.96

Finding the Fourth Proportional to 10,380.12, 14,323.36 and 5,902.96

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Solution

The fourth proportional to 10,380.12, 14,323.36 and 5,902.96 is: 8,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,380.12 : 14,323.36 = 5,902.96 : x
  2. Step 2: Convert to fraction form
    10,380.12/14,323.36 = 5,902.96/x
  3. Step 3: Cross multiply
    10,380.12x = 14,323.36 × 5,902.96
  4. Step 4: Simplify right side
    10,380.12x = 84,550,221.15
  5. Step 5: Solve for x
    x = 84,550,221.15/10,380.12
  6. Step 6: Final answer
    x = 8,145.40

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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.