Home / 10,199.76-15,300.72-9,040.56

Finding the Fourth Proportional to 10,199.76, 15,300.72 and 9,040.56

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Solution

The fourth proportional to 10,199.76, 15,300.72 and 9,040.56 is: 13,561.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,199.76 : 15,300.72 = 9,040.56 : x
  2. Step 2: Convert to fraction form
    10,199.76/15,300.72 = 9,040.56/x
  3. Step 3: Cross multiply
    10,199.76x = 15,300.72 × 9,040.56
  4. Step 4: Simplify right side
    10,199.76x = 138,327,077.20
  5. Step 5: Solve for x
    x = 138,327,077.20/10,199.76
  6. Step 6: Final answer
    x = 13,561.80

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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.