Home / 13,702.01-18,908.78-9,512.69

Finding the Fourth Proportional to 13,702.01, 18,908.78 and 9,512.69

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Solution

The fourth proportional to 13,702.01, 18,908.78 and 9,512.69 is: 13,127.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,702.01 : 18,908.78 = 9,512.69 : x
  2. Step 2: Convert to fraction form
    13,702.01/18,908.78 = 9,512.69/x
  3. Step 3: Cross multiply
    13,702.01x = 18,908.78 × 9,512.69
  4. Step 4: Simplify right side
    13,702.01x = 179,873,220.31
  5. Step 5: Solve for x
    x = 179,873,220.31/13,702.01
  6. Step 6: Final answer
    x = 13,127.51

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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.