Home / 12,286.04-16,955.18-6,981.76

Finding the Fourth Proportional to 12,286.04, 16,955.18 and 6,981.76

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Solution

The fourth proportional to 12,286.04, 16,955.18 and 6,981.76 is: 9,635.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.04 : 16,955.18 = 6,981.76 : x
  2. Step 2: Convert to fraction form
    12,286.04/16,955.18 = 6,981.76/x
  3. Step 3: Cross multiply
    12,286.04x = 16,955.18 × 6,981.76
  4. Step 4: Simplify right side
    12,286.04x = 118,376,997.52
  5. Step 5: Solve for x
    x = 118,376,997.52/12,286.04
  6. Step 6: Final answer
    x = 9,635.08

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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.