Home / 8,120.67-11,199.03-5,598.74

Finding the Fourth Proportional to 8,120.67, 11,199.03 and 5,598.74

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Solution

The fourth proportional to 8,120.67, 11,199.03 and 5,598.74 is: 7,721.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.67 : 11,199.03 = 5,598.74 : x
  2. Step 2: Convert to fraction form
    8,120.67/11,199.03 = 5,598.74/x
  3. Step 3: Cross multiply
    8,120.67x = 11,199.03 × 5,598.74
  4. Step 4: Simplify right side
    8,120.67x = 62,700,401.23
  5. Step 5: Solve for x
    x = 62,700,401.23/8,120.67
  6. Step 6: Final answer
    x = 7,721.09

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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.