Home / 7,615.36-11,432.80-4,155.04

Finding the Fourth Proportional to 7,615.36, 11,432.80 and 4,155.04

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Solution

The fourth proportional to 7,615.36, 11,432.80 and 4,155.04 is: 6,237.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,615.36 : 11,432.80 = 4,155.04 : x
  2. Step 2: Convert to fraction form
    7,615.36/11,432.80 = 4,155.04/x
  3. Step 3: Cross multiply
    7,615.36x = 11,432.80 × 4,155.04
  4. Step 4: Simplify right side
    7,615.36x = 47,503,741.31
  5. Step 5: Solve for x
    x = 47,503,741.31/7,615.36
  6. Step 6: Final answer
    x = 6,237.89

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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.