Home / 10,990.37-15,175.40-10,150.74

Finding the Fourth Proportional to 10,990.37, 15,175.40 and 10,150.74

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Solution

The fourth proportional to 10,990.37, 15,175.40 and 10,150.74 is: 14,016.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,990.37 : 15,175.40 = 10,150.74 : x
  2. Step 2: Convert to fraction form
    10,990.37/15,175.40 = 10,150.74/x
  3. Step 3: Cross multiply
    10,990.37x = 15,175.40 × 10,150.74
  4. Step 4: Simplify right side
    10,990.37x = 154,041,489.04
  5. Step 5: Solve for x
    x = 154,041,489.04/10,990.37
  6. Step 6: Final answer
    x = 14,016.05

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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.