Home / 8,401.28-11,587.20-7,295.36

Finding the Fourth Proportional to 8,401.28, 11,587.20 and 7,295.36

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Solution

The fourth proportional to 8,401.28, 11,587.20 and 7,295.36 is: 10,061.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,401.28 : 11,587.20 = 7,295.36 : x
  2. Step 2: Convert to fraction form
    8,401.28/11,587.20 = 7,295.36/x
  3. Step 3: Cross multiply
    8,401.28x = 11,587.20 × 7,295.36
  4. Step 4: Simplify right side
    8,401.28x = 84,532,795.39
  5. Step 5: Solve for x
    x = 84,532,795.39/8,401.28
  6. Step 6: Final answer
    x = 10,061.89

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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.