Home / 9,988.92-13,777.56-7,626.96

Finding the Fourth Proportional to 9,988.92, 13,777.56 and 7,626.96

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Solution

The fourth proportional to 9,988.92, 13,777.56 and 7,626.96 is: 10,519.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,988.92 : 13,777.56 = 7,626.96 : x
  2. Step 2: Convert to fraction form
    9,988.92/13,777.56 = 7,626.96/x
  3. Step 3: Cross multiply
    9,988.92x = 13,777.56 × 7,626.96
  4. Step 4: Simplify right side
    9,988.92x = 105,080,899.02
  5. Step 5: Solve for x
    x = 105,080,899.02/9,988.92
  6. Step 6: Final answer
    x = 10,519.75

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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.