Home / 11,281.60-15,563.08-7,306.12

Finding the Fourth Proportional to 11,281.60, 15,563.08 and 7,306.12

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Solution

The fourth proportional to 11,281.60, 15,563.08 and 7,306.12 is: 10,078.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,281.60 : 15,563.08 = 7,306.12 : x
  2. Step 2: Convert to fraction form
    11,281.60/15,563.08 = 7,306.12/x
  3. Step 3: Cross multiply
    11,281.60x = 15,563.08 × 7,306.12
  4. Step 4: Simplify right side
    11,281.60x = 113,705,730.05
  5. Step 5: Solve for x
    x = 113,705,730.05/11,281.60
  6. Step 6: Final answer
    x = 10,078.87

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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.