Home / 9,885.46-13,642.02-6,107.76

Finding the Fourth Proportional to 9,885.46, 13,642.02 and 6,107.76

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Solution

The fourth proportional to 9,885.46, 13,642.02 and 6,107.76 is: 8,428.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,885.46 : 13,642.02 = 6,107.76 : x
  2. Step 2: Convert to fraction form
    9,885.46/13,642.02 = 6,107.76/x
  3. Step 3: Cross multiply
    9,885.46x = 13,642.02 × 6,107.76
  4. Step 4: Simplify right side
    9,885.46x = 83,322,115.87
  5. Step 5: Solve for x
    x = 83,322,115.87/9,885.46
  6. Step 6: Final answer
    x = 8,428.75

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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.