Home / 7,863.12-10,848.36-4,877.88

Finding the Fourth Proportional to 7,863.12, 10,848.36 and 4,877.88

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Solution

The fourth proportional to 7,863.12, 10,848.36 and 4,877.88 is: 6,729.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,863.12 : 10,848.36 = 4,877.88 : x
  2. Step 2: Convert to fraction form
    7,863.12/10,848.36 = 4,877.88/x
  3. Step 3: Cross multiply
    7,863.12x = 10,848.36 × 4,877.88
  4. Step 4: Simplify right side
    7,863.12x = 52,916,998.28
  5. Step 5: Solve for x
    x = 52,916,998.28/7,863.12
  6. Step 6: Final answer
    x = 6,729.77

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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.