Home / 13,560.84-18,713.70-8,836.20

Finding the Fourth Proportional to 13,560.84, 18,713.70 and 8,836.20

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Solution

The fourth proportional to 13,560.84, 18,713.70 and 8,836.20 is: 12,193.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,560.84 : 18,713.70 = 8,836.20 : x
  2. Step 2: Convert to fraction form
    13,560.84/18,713.70 = 8,836.20/x
  3. Step 3: Cross multiply
    13,560.84x = 18,713.70 × 8,836.20
  4. Step 4: Simplify right side
    13,560.84x = 165,357,995.94
  5. Step 5: Solve for x
    x = 165,357,995.94/13,560.84
  6. Step 6: Final answer
    x = 12,193.79

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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.