Home / 6,288.80-9,429.60-5,578.16

Finding the Fourth Proportional to 6,288.80, 9,429.60 and 5,578.16

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Solution

The fourth proportional to 6,288.80, 9,429.60 and 5,578.16 is: 8,364.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,288.80 : 9,429.60 = 5,578.16 : x
  2. Step 2: Convert to fraction form
    6,288.80/9,429.60 = 5,578.16/x
  3. Step 3: Cross multiply
    6,288.80x = 9,429.60 × 5,578.16
  4. Step 4: Simplify right side
    6,288.80x = 52,599,817.54
  5. Step 5: Solve for x
    x = 52,599,817.54/6,288.80
  6. Step 6: Final answer
    x = 8,364.05

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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.