Home / 7,881.12-10,875.20-4,523.13

Finding the Fourth Proportional to 7,881.12, 10,875.20 and 4,523.13

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Solution

The fourth proportional to 7,881.12, 10,875.20 and 4,523.13 is: 6,241.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.12 : 10,875.20 = 4,523.13 : x
  2. Step 2: Convert to fraction form
    7,881.12/10,875.20 = 4,523.13/x
  3. Step 3: Cross multiply
    7,881.12x = 10,875.20 × 4,523.13
  4. Step 4: Simplify right side
    7,881.12x = 49,189,920.76
  5. Step 5: Solve for x
    x = 49,189,920.76/7,881.12
  6. Step 6: Final answer
    x = 6,241.49

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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.