Home / 9,015.80-13,515.60-5,727.20

Finding the Fourth Proportional to 9,015.80, 13,515.60 and 5,727.20

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Solution

The fourth proportional to 9,015.80, 13,515.60 and 5,727.20 is: 8,585.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,015.80 : 13,515.60 = 5,727.20 : x
  2. Step 2: Convert to fraction form
    9,015.80/13,515.60 = 5,727.20/x
  3. Step 3: Cross multiply
    9,015.80x = 13,515.60 × 5,727.20
  4. Step 4: Simplify right side
    9,015.80x = 77,406,544.32
  5. Step 5: Solve for x
    x = 77,406,544.32/9,015.80
  6. Step 6: Final answer
    x = 8,585.65

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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.