Home / 7,881.20-10,877.51-4,896.35

Finding the Fourth Proportional to 7,881.20, 10,877.51 and 4,896.35

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Solution

The fourth proportional to 7,881.20, 10,877.51 and 4,896.35 is: 6,757.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,881.20 : 10,877.51 = 4,896.35 : x
  2. Step 2: Convert to fraction form
    7,881.20/10,877.51 = 4,896.35/x
  3. Step 3: Cross multiply
    7,881.20x = 10,877.51 × 4,896.35
  4. Step 4: Simplify right side
    7,881.20x = 53,260,096.09
  5. Step 5: Solve for x
    x = 53,260,096.09/7,881.20
  6. Step 6: Final answer
    x = 6,757.87

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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.