Home / 18,327.08-27,492.88-6,478.40

Finding the Fourth Proportional to 18,327.08, 27,492.88 and 6,478.40

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Solution

The fourth proportional to 18,327.08, 27,492.88 and 6,478.40 is: 9,718.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,327.08 : 27,492.88 = 6,478.40 : x
  2. Step 2: Convert to fraction form
    18,327.08/27,492.88 = 6,478.40/x
  3. Step 3: Cross multiply
    18,327.08x = 27,492.88 × 6,478.40
  4. Step 4: Simplify right side
    18,327.08x = 178,109,965.73
  5. Step 5: Solve for x
    x = 178,109,965.73/18,327.08
  6. Step 6: Final answer
    x = 9,718.41

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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.