Home / 12,613.23-17,399.65-9,623.88

Finding the Fourth Proportional to 12,613.23, 17,399.65 and 9,623.88

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Solution

The fourth proportional to 12,613.23, 17,399.65 and 9,623.88 is: 13,275.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,613.23 : 17,399.65 = 9,623.88 : x
  2. Step 2: Convert to fraction form
    12,613.23/17,399.65 = 9,623.88/x
  3. Step 3: Cross multiply
    12,613.23x = 17,399.65 × 9,623.88
  4. Step 4: Simplify right side
    12,613.23x = 167,452,143.64
  5. Step 5: Solve for x
    x = 167,452,143.64/12,613.23
  6. Step 6: Final answer
    x = 13,275.91

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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.