Home / 8,921.48-13,379.55-5,594.78

Finding the Fourth Proportional to 8,921.48, 13,379.55 and 5,594.78

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Solution

The fourth proportional to 8,921.48, 13,379.55 and 5,594.78 is: 8,390.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,921.48 : 13,379.55 = 5,594.78 : x
  2. Step 2: Convert to fraction form
    8,921.48/13,379.55 = 5,594.78/x
  3. Step 3: Cross multiply
    8,921.48x = 13,379.55 × 5,594.78
  4. Step 4: Simplify right side
    8,921.48x = 74,855,638.75
  5. Step 5: Solve for x
    x = 74,855,638.75/8,921.48
  6. Step 6: Final answer
    x = 8,390.50

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Similar ratio
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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.