Home / 9,071.20-13,606.80-3,877.60

Finding the Fourth Proportional to 9,071.20, 13,606.80 and 3,877.60

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Solution

The fourth proportional to 9,071.20, 13,606.80 and 3,877.60 is: 5,816.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,071.20 : 13,606.80 = 3,877.60 : x
  2. Step 2: Convert to fraction form
    9,071.20/13,606.80 = 3,877.60/x
  3. Step 3: Cross multiply
    9,071.20x = 13,606.80 × 3,877.60
  4. Step 4: Simplify right side
    9,071.20x = 52,761,727.68
  5. Step 5: Solve for x
    x = 52,761,727.68/9,071.20
  6. Step 6: Final answer
    x = 5,816.40

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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.