Home / 8,040.42-11,099.58-5,389.56

Finding the Fourth Proportional to 8,040.42, 11,099.58 and 5,389.56

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Solution

The fourth proportional to 8,040.42, 11,099.58 and 5,389.56 is: 7,440.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,040.42 : 11,099.58 = 5,389.56 : x
  2. Step 2: Convert to fraction form
    8,040.42/11,099.58 = 5,389.56/x
  3. Step 3: Cross multiply
    8,040.42x = 11,099.58 × 5,389.56
  4. Step 4: Simplify right side
    8,040.42x = 59,821,852.38
  5. Step 5: Solve for x
    x = 59,821,852.38/8,040.42
  6. Step 6: Final answer
    x = 7,440.14

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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.