Home / 8,288.75-11,427.23-5,631.55

Finding the Fourth Proportional to 8,288.75, 11,427.23 and 5,631.55

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Solution

The fourth proportional to 8,288.75, 11,427.23 and 5,631.55 is: 7,763.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,288.75 : 11,427.23 = 5,631.55 : x
  2. Step 2: Convert to fraction form
    8,288.75/11,427.23 = 5,631.55/x
  3. Step 3: Cross multiply
    8,288.75x = 11,427.23 × 5,631.55
  4. Step 4: Simplify right side
    8,288.75x = 64,353,002.62
  5. Step 5: Solve for x
    x = 64,353,002.62/8,288.75
  6. Step 6: Final answer
    x = 7,763.89

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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.