Home / 8,015.18-11,061.51-5,220.68

Finding the Fourth Proportional to 8,015.18, 11,061.51 and 5,220.68

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Solution

The fourth proportional to 8,015.18, 11,061.51 and 5,220.68 is: 7,204.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,015.18 : 11,061.51 = 5,220.68 : x
  2. Step 2: Convert to fraction form
    8,015.18/11,061.51 = 5,220.68/x
  3. Step 3: Cross multiply
    8,015.18x = 11,061.51 × 5,220.68
  4. Step 4: Simplify right side
    8,015.18x = 57,748,604.03
  5. Step 5: Solve for x
    x = 57,748,604.03/8,015.18
  6. Step 6: Final answer
    x = 7,204.90

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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.