Home / 9,117.98-13,680.30-3,854.36

Finding the Fourth Proportional to 9,117.98, 13,680.30 and 3,854.36

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Solution

The fourth proportional to 9,117.98, 13,680.30 and 3,854.36 is: 5,782.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,117.98 : 13,680.30 = 3,854.36 : x
  2. Step 2: Convert to fraction form
    9,117.98/13,680.30 = 3,854.36/x
  3. Step 3: Cross multiply
    9,117.98x = 13,680.30 × 3,854.36
  4. Step 4: Simplify right side
    9,117.98x = 52,728,801.11
  5. Step 5: Solve for x
    x = 52,728,801.11/9,117.98
  6. Step 6: Final answer
    x = 5,782.95

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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.