Home / 9,090.46-12,545.78-5,556.03

Finding the Fourth Proportional to 9,090.46, 12,545.78 and 5,556.03

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Solution

The fourth proportional to 9,090.46, 12,545.78 and 5,556.03 is: 7,667.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,090.46 : 12,545.78 = 5,556.03 : x
  2. Step 2: Convert to fraction form
    9,090.46/12,545.78 = 5,556.03/x
  3. Step 3: Cross multiply
    9,090.46x = 12,545.78 × 5,556.03
  4. Step 4: Simplify right side
    9,090.46x = 69,704,730.05
  5. Step 5: Solve for x
    x = 69,704,730.05/9,090.46
  6. Step 6: Final answer
    x = 7,667.90

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Half scale
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Double scale
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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.