Home / 8,871.12-12,236.72-5,283.70

Finding the Fourth Proportional to 8,871.12, 12,236.72 and 5,283.70

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Solution

The fourth proportional to 8,871.12, 12,236.72 and 5,283.70 is: 7,288.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,871.12 : 12,236.72 = 5,283.70 : x
  2. Step 2: Convert to fraction form
    8,871.12/12,236.72 = 5,283.70/x
  3. Step 3: Cross multiply
    8,871.12x = 12,236.72 × 5,283.70
  4. Step 4: Simplify right side
    8,871.12x = 64,655,157.46
  5. Step 5: Solve for x
    x = 64,655,157.46/8,871.12
  6. Step 6: Final answer
    x = 7,288.27

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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.