Home / 12,864.04-17,752.71-7,198.60

Finding the Fourth Proportional to 12,864.04, 17,752.71 and 7,198.60

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Solution

The fourth proportional to 12,864.04, 17,752.71 and 7,198.60 is: 9,934.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,864.04 : 17,752.71 = 7,198.60 : x
  2. Step 2: Convert to fraction form
    12,864.04/17,752.71 = 7,198.60/x
  3. Step 3: Cross multiply
    12,864.04x = 17,752.71 × 7,198.60
  4. Step 4: Simplify right side
    12,864.04x = 127,794,658.21
  5. Step 5: Solve for x
    x = 127,794,658.21/12,864.04
  6. Step 6: Final answer
    x = 9,934.26

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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.