Home / 7,767.72-10,720.11-4,411.56

Finding the Fourth Proportional to 7,767.72, 10,720.11 and 4,411.56

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Solution

The fourth proportional to 7,767.72, 10,720.11 and 4,411.56 is: 6,088.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,767.72 : 10,720.11 = 4,411.56 : x
  2. Step 2: Convert to fraction form
    7,767.72/10,720.11 = 4,411.56/x
  3. Step 3: Cross multiply
    7,767.72x = 10,720.11 × 4,411.56
  4. Step 4: Simplify right side
    7,767.72x = 47,292,408.47
  5. Step 5: Solve for x
    x = 47,292,408.47/7,767.72
  6. Step 6: Final answer
    x = 6,088.33

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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.