Home / 7,138.90-10,720.68-6,044.05

Finding the Fourth Proportional to 7,138.90, 10,720.68 and 6,044.05

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Solution

The fourth proportional to 7,138.90, 10,720.68 and 6,044.05 is: 9,076.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,138.90 : 10,720.68 = 6,044.05 : x
  2. Step 2: Convert to fraction form
    7,138.90/10,720.68 = 6,044.05/x
  3. Step 3: Cross multiply
    7,138.90x = 10,720.68 × 6,044.05
  4. Step 4: Simplify right side
    7,138.90x = 64,796,325.95
  5. Step 5: Solve for x
    x = 64,796,325.95/7,138.90
  6. Step 6: Final answer
    x = 9,076.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.