Home / 9,108.84-12,571.09-5,331.77

Finding the Fourth Proportional to 9,108.84, 12,571.09 and 5,331.77

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Solution

The fourth proportional to 9,108.84, 12,571.09 and 5,331.77 is: 7,358.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,108.84 : 12,571.09 = 5,331.77 : x
  2. Step 2: Convert to fraction form
    9,108.84/12,571.09 = 5,331.77/x
  3. Step 3: Cross multiply
    9,108.84x = 12,571.09 × 5,331.77
  4. Step 4: Simplify right side
    9,108.84x = 67,026,217.19
  5. Step 5: Solve for x
    x = 67,026,217.19/9,108.84
  6. Step 6: Final answer
    x = 7,358.37

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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.