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Finding the Fourth Proportional to 8,798.40, 13,197.36 and 2,642.40

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Solution

The fourth proportional to 8,798.40, 13,197.36 and 2,642.40 is: 3,963.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.40 : 13,197.36 = 2,642.40 : x
  2. Step 2: Convert to fraction form
    8,798.40/13,197.36 = 2,642.40/x
  3. Step 3: Cross multiply
    8,798.40x = 13,197.36 × 2,642.40
  4. Step 4: Simplify right side
    8,798.40x = 34,872,704.06
  5. Step 5: Solve for x
    x = 34,872,704.06/8,798.40
  6. Step 6: Final answer
    x = 3,963.53

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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.