Home / 9,885.30-13,648.20-5,907.66

Finding the Fourth Proportional to 9,885.30, 13,648.20 and 5,907.66

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Solution

The fourth proportional to 9,885.30, 13,648.20 and 5,907.66 is: 8,156.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,885.30 : 13,648.20 = 5,907.66 : x
  2. Step 2: Convert to fraction form
    9,885.30/13,648.20 = 5,907.66/x
  3. Step 3: Cross multiply
    9,885.30x = 13,648.20 × 5,907.66
  4. Step 4: Simplify right side
    9,885.30x = 80,628,891.09
  5. Step 5: Solve for x
    x = 80,628,891.09/9,885.30
  6. Step 6: Final answer
    x = 8,156.45

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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.