Home / 9,005.12-13,512.56-3,165.92

Finding the Fourth Proportional to 9,005.12, 13,512.56 and 3,165.92

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Solution

The fourth proportional to 9,005.12, 13,512.56 and 3,165.92 is: 4,750.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,005.12 : 13,512.56 = 3,165.92 : x
  2. Step 2: Convert to fraction form
    9,005.12/13,512.56 = 3,165.92/x
  3. Step 3: Cross multiply
    9,005.12x = 13,512.56 × 3,165.92
  4. Step 4: Simplify right side
    9,005.12x = 42,779,683.96
  5. Step 5: Solve for x
    x = 42,779,683.96/9,005.12
  6. Step 6: Final answer
    x = 4,750.60

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1.5x scale

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.