Home / 7,989.90-11,026.11-4,453.17

Finding the Fourth Proportional to 7,989.90, 11,026.11 and 4,453.17

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Solution

The fourth proportional to 7,989.90, 11,026.11 and 4,453.17 is: 6,145.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,989.90 : 11,026.11 = 4,453.17 : x
  2. Step 2: Convert to fraction form
    7,989.90/11,026.11 = 4,453.17/x
  3. Step 3: Cross multiply
    7,989.90x = 11,026.11 × 4,453.17
  4. Step 4: Simplify right side
    7,989.90x = 49,101,142.27
  5. Step 5: Solve for x
    x = 49,101,142.27/7,989.90
  6. Step 6: Final answer
    x = 6,145.40

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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.