Home / 7,966.77-10,987.56-6,685.62

Finding the Fourth Proportional to 7,966.77, 10,987.56 and 6,685.62

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Solution

The fourth proportional to 7,966.77, 10,987.56 and 6,685.62 is: 9,220.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,966.77 : 10,987.56 = 6,685.62 : x
  2. Step 2: Convert to fraction form
    7,966.77/10,987.56 = 6,685.62/x
  3. Step 3: Cross multiply
    7,966.77x = 10,987.56 × 6,685.62
  4. Step 4: Simplify right side
    7,966.77x = 73,458,650.89
  5. Step 5: Solve for x
    x = 73,458,650.89/7,966.77
  6. Step 6: Final answer
    x = 9,220.63

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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.