Home / 7,469.80-10,292.08-5,580.64

Finding the Fourth Proportional to 7,469.80, 10,292.08 and 5,580.64

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Solution

The fourth proportional to 7,469.80, 10,292.08 and 5,580.64 is: 7,689.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,469.80 : 10,292.08 = 5,580.64 : x
  2. Step 2: Convert to fraction form
    7,469.80/10,292.08 = 5,580.64/x
  3. Step 3: Cross multiply
    7,469.80x = 10,292.08 × 5,580.64
  4. Step 4: Simplify right side
    7,469.80x = 57,436,393.33
  5. Step 5: Solve for x
    x = 57,436,393.33/7,469.80
  6. Step 6: Final answer
    x = 7,689.15

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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.