Home / 10,621.64-15,931.43-3,226.17

Finding the Fourth Proportional to 10,621.64, 15,931.43 and 3,226.17

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Solution

The fourth proportional to 10,621.64, 15,931.43 and 3,226.17 is: 4,838.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,621.64 : 15,931.43 = 3,226.17 : x
  2. Step 2: Convert to fraction form
    10,621.64/15,931.43 = 3,226.17/x
  3. Step 3: Cross multiply
    10,621.64x = 15,931.43 × 3,226.17
  4. Step 4: Simplify right side
    10,621.64x = 51,397,509.59
  5. Step 5: Solve for x
    x = 51,397,509.59/10,621.64
  6. Step 6: Final answer
    x = 4,838.94

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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.