Home / 13,013.32-17,963.04-7,708.20

Finding the Fourth Proportional to 13,013.32, 17,963.04 and 7,708.20

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Solution

The fourth proportional to 13,013.32, 17,963.04 and 7,708.20 is: 10,640.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,013.32 : 17,963.04 = 7,708.20 : x
  2. Step 2: Convert to fraction form
    13,013.32/17,963.04 = 7,708.20/x
  3. Step 3: Cross multiply
    13,013.32x = 17,963.04 × 7,708.20
  4. Step 4: Simplify right side
    13,013.32x = 138,462,704.93
  5. Step 5: Solve for x
    x = 138,462,704.93/13,013.32
  6. Step 6: Final answer
    x = 10,640.08

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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.