Home / 10,271.12-15,412.80-4,427.60

Finding the Fourth Proportional to 10,271.12, 15,412.80 and 4,427.60

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Solution

The fourth proportional to 10,271.12, 15,412.80 and 4,427.60 is: 6,644.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,271.12 : 15,412.80 = 4,427.60 : x
  2. Step 2: Convert to fraction form
    10,271.12/15,412.80 = 4,427.60/x
  3. Step 3: Cross multiply
    10,271.12x = 15,412.80 × 4,427.60
  4. Step 4: Simplify right side
    10,271.12x = 68,241,713.28
  5. Step 5: Solve for x
    x = 68,241,713.28/10,271.12
  6. Step 6: Final answer
    x = 6,644.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.