Home / 7,515.88-11,273.56-1,969.18

Finding the Fourth Proportional to 7,515.88, 11,273.56 and 1,969.18

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Solution

The fourth proportional to 7,515.88, 11,273.56 and 1,969.18 is: 2,953.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,515.88 : 11,273.56 = 1,969.18 : x
  2. Step 2: Convert to fraction form
    7,515.88/11,273.56 = 1,969.18/x
  3. Step 3: Cross multiply
    7,515.88x = 11,273.56 × 1,969.18
  4. Step 4: Simplify right side
    7,515.88x = 22,199,635.77
  5. Step 5: Solve for x
    x = 22,199,635.77/7,515.88
  6. Step 6: Final answer
    x = 2,953.70

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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.