Home / 10,990.74-15,150.60-7,633.74

Finding the Fourth Proportional to 10,990.74, 15,150.60 and 7,633.74

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Solution

The fourth proportional to 10,990.74, 15,150.60 and 7,633.74 is: 10,523.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.74 : 15,150.60 = 7,633.74 : x
  2. Step 2: Convert to fraction form
    10,990.74/15,150.60 = 7,633.74/x
  3. Step 3: Cross multiply
    10,990.74x = 15,150.60 × 7,633.74
  4. Step 4: Simplify right side
    10,990.74x = 115,655,741.24
  5. Step 5: Solve for x
    x = 115,655,741.24/10,990.74
  6. Step 6: Final answer
    x = 10,523.02

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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.