Home / 12,869.04-17,760.12-7,204.32

Finding the Fourth Proportional to 12,869.04, 17,760.12 and 7,204.32

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Solution

The fourth proportional to 12,869.04, 17,760.12 and 7,204.32 is: 9,942.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,869.04 : 17,760.12 = 7,204.32 : x
  2. Step 2: Convert to fraction form
    12,869.04/17,760.12 = 7,204.32/x
  3. Step 3: Cross multiply
    12,869.04x = 17,760.12 × 7,204.32
  4. Step 4: Simplify right side
    12,869.04x = 127,949,587.72
  5. Step 5: Solve for x
    x = 127,949,587.72/12,869.04
  6. Step 6: Final answer
    x = 9,942.43

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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.