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Finding the Fourth Proportional to 7,519.66, 10,359.84 and 7,169.74

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Solution

The fourth proportional to 7,519.66, 10,359.84 and 7,169.74 is: 9,877.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,519.66 : 10,359.84 = 7,169.74 : x
  2. Step 2: Convert to fraction form
    7,519.66/10,359.84 = 7,169.74/x
  3. Step 3: Cross multiply
    7,519.66x = 10,359.84 × 7,169.74
  4. Step 4: Simplify right side
    7,519.66x = 74,277,359.24
  5. Step 5: Solve for x
    x = 74,277,359.24/7,519.66
  6. Step 6: Final answer
    x = 9,877.76

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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.