Home / 12,431.28-18,642.06-4,635.84

Finding the Fourth Proportional to 12,431.28, 18,642.06 and 4,635.84

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Solution

The fourth proportional to 12,431.28, 18,642.06 and 4,635.84 is: 6,951.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,431.28 : 18,642.06 = 4,635.84 : x
  2. Step 2: Convert to fraction form
    12,431.28/18,642.06 = 4,635.84/x
  3. Step 3: Cross multiply
    12,431.28x = 18,642.06 × 4,635.84
  4. Step 4: Simplify right side
    12,431.28x = 86,421,607.43
  5. Step 5: Solve for x
    x = 86,421,607.43/12,431.28
  6. Step 6: Final answer
    x = 6,951.95

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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.