Home / 9,261.60-12,779.40-5,283.12

Finding the Fourth Proportional to 9,261.60, 12,779.40 and 5,283.12

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Solution

The fourth proportional to 9,261.60, 12,779.40 and 5,283.12 is: 7,289.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,261.60 : 12,779.40 = 5,283.12 : x
  2. Step 2: Convert to fraction form
    9,261.60/12,779.40 = 5,283.12/x
  3. Step 3: Cross multiply
    9,261.60x = 12,779.40 × 5,283.12
  4. Step 4: Simplify right side
    9,261.60x = 67,515,103.73
  5. Step 5: Solve for x
    x = 67,515,103.73/9,261.60
  6. Step 6: Final answer
    x = 7,289.79

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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.