Home / 11,870.71-16,380.92-6,492.08

Finding the Fourth Proportional to 11,870.71, 16,380.92 and 6,492.08

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Solution

The fourth proportional to 11,870.71, 16,380.92 and 6,492.08 is: 8,958.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,870.71 : 16,380.92 = 6,492.08 : x
  2. Step 2: Convert to fraction form
    11,870.71/16,380.92 = 6,492.08/x
  3. Step 3: Cross multiply
    11,870.71x = 16,380.92 × 6,492.08
  4. Step 4: Simplify right side
    11,870.71x = 106,346,243.11
  5. Step 5: Solve for x
    x = 106,346,243.11/11,870.71
  6. Step 6: Final answer
    x = 8,958.71

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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.