Home / 11,947.80-16,492.45-8,972.24

Finding the Fourth Proportional to 11,947.80, 16,492.45 and 8,972.24

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Solution

The fourth proportional to 11,947.80, 16,492.45 and 8,972.24 is: 12,385.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,947.80 : 16,492.45 = 8,972.24 : x
  2. Step 2: Convert to fraction form
    11,947.80/16,492.45 = 8,972.24/x
  3. Step 3: Cross multiply
    11,947.80x = 16,492.45 × 8,972.24
  4. Step 4: Simplify right side
    11,947.80x = 147,974,219.59
  5. Step 5: Solve for x
    x = 147,974,219.59/11,947.80
  6. Step 6: Final answer
    x = 12,385.06

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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.