Home / 11,079.80-16,619.70-3,685.40

Finding the Fourth Proportional to 11,079.80, 16,619.70 and 3,685.40

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Solution

The fourth proportional to 11,079.80, 16,619.70 and 3,685.40 is: 5,528.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,079.80 : 16,619.70 = 3,685.40 : x
  2. Step 2: Convert to fraction form
    11,079.80/16,619.70 = 3,685.40/x
  3. Step 3: Cross multiply
    11,079.80x = 16,619.70 × 3,685.40
  4. Step 4: Simplify right side
    11,079.80x = 61,250,242.38
  5. Step 5: Solve for x
    x = 61,250,242.38/11,079.80
  6. Step 6: Final answer
    x = 5,528.10

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Similar ratio
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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.