Home / 10,015.60-15,010.25-7,370.72

Finding the Fourth Proportional to 10,015.60, 15,010.25 and 7,370.72

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Solution

The fourth proportional to 10,015.60, 15,010.25 and 7,370.72 is: 11,046.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,015.60 : 15,010.25 = 7,370.72 : x
  2. Step 2: Convert to fraction form
    10,015.60/15,010.25 = 7,370.72/x
  3. Step 3: Cross multiply
    10,015.60x = 15,010.25 × 7,370.72
  4. Step 4: Simplify right side
    10,015.60x = 110,636,237.98
  5. Step 5: Solve for x
    x = 110,636,237.98/10,015.60
  6. Step 6: Final answer
    x = 11,046.40

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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.