Home / 9,135.07-12,607.49-5,359.66

Finding the Fourth Proportional to 9,135.07, 12,607.49 and 5,359.66

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Solution

The fourth proportional to 9,135.07, 12,607.49 and 5,359.66 is: 7,396.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,135.07 : 12,607.49 = 5,359.66 : x
  2. Step 2: Convert to fraction form
    9,135.07/12,607.49 = 5,359.66/x
  3. Step 3: Cross multiply
    9,135.07x = 12,607.49 × 5,359.66
  4. Step 4: Simplify right side
    9,135.07x = 67,571,841.73
  5. Step 5: Solve for x
    x = 67,571,841.73/9,135.07
  6. Step 6: Final answer
    x = 7,396.97

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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.