Home / 11,378.92-16,980.29-10,066.72

Finding the Fourth Proportional to 11,378.92, 16,980.29 and 10,066.72

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Solution

The fourth proportional to 11,378.92, 16,980.29 and 10,066.72 is: 15,022.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,378.92 : 16,980.29 = 10,066.72 : x
  2. Step 2: Convert to fraction form
    11,378.92/16,980.29 = 10,066.72/x
  3. Step 3: Cross multiply
    11,378.92x = 16,980.29 × 10,066.72
  4. Step 4: Simplify right side
    11,378.92x = 170,935,824.95
  5. Step 5: Solve for x
    x = 170,935,824.95/11,378.92
  6. Step 6: Final answer
    x = 15,022.15

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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.