Home / 8,959.90-13,436.47-2,718.09

Finding the Fourth Proportional to 8,959.90, 13,436.47 and 2,718.09

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Solution

The fourth proportional to 8,959.90, 13,436.47 and 2,718.09 is: 4,076.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,959.90 : 13,436.47 = 2,718.09 : x
  2. Step 2: Convert to fraction form
    8,959.90/13,436.47 = 2,718.09/x
  3. Step 3: Cross multiply
    8,959.90x = 13,436.47 × 2,718.09
  4. Step 4: Simplify right side
    8,959.90x = 36,521,534.74
  5. Step 5: Solve for x
    x = 36,521,534.74/8,959.90
  6. Step 6: Final answer
    x = 4,076.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.