Home / 11,343.28-16,981.65-7,954.32

Finding the Fourth Proportional to 11,343.28, 16,981.65 and 7,954.32

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Solution

The fourth proportional to 11,343.28, 16,981.65 and 7,954.32 is: 11,908.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,343.28 : 16,981.65 = 7,954.32 : x
  2. Step 2: Convert to fraction form
    11,343.28/16,981.65 = 7,954.32/x
  3. Step 3: Cross multiply
    11,343.28x = 16,981.65 × 7,954.32
  4. Step 4: Simplify right side
    11,343.28x = 135,077,438.46
  5. Step 5: Solve for x
    x = 135,077,438.46/11,343.28
  6. Step 6: Final answer
    x = 11,908.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.