Home / 18,616.08-25,696.80-12,330.48

Finding the Fourth Proportional to 18,616.08, 25,696.80 and 12,330.48

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Solution

The fourth proportional to 18,616.08, 25,696.80 and 12,330.48 is: 17,020.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,616.08 : 25,696.80 = 12,330.48 : x
  2. Step 2: Convert to fraction form
    18,616.08/25,696.80 = 12,330.48/x
  3. Step 3: Cross multiply
    18,616.08x = 25,696.80 × 12,330.48
  4. Step 4: Simplify right side
    18,616.08x = 316,853,878.46
  5. Step 5: Solve for x
    x = 316,853,878.46/18,616.08
  6. Step 6: Final answer
    x = 17,020.44

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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.