Home / 7,112.45-10,615.99-6,674.69

Finding the Fourth Proportional to 7,112.45, 10,615.99 and 6,674.69

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Solution

The fourth proportional to 7,112.45, 10,615.99 and 6,674.69 is: 9,962.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,112.45 : 10,615.99 = 6,674.69 : x
  2. Step 2: Convert to fraction form
    7,112.45/10,615.99 = 6,674.69/x
  3. Step 3: Cross multiply
    7,112.45x = 10,615.99 × 6,674.69
  4. Step 4: Simplify right side
    7,112.45x = 70,858,442.29
  5. Step 5: Solve for x
    x = 70,858,442.29/7,112.45
  6. Step 6: Final answer
    x = 9,962.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.