Home / 15,169.84-20,942.64-10,479.36

Finding the Fourth Proportional to 15,169.84, 20,942.64 and 10,479.36

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Solution

The fourth proportional to 15,169.84, 20,942.64 and 10,479.36 is: 14,467.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,169.84 : 20,942.64 = 10,479.36 : x
  2. Step 2: Convert to fraction form
    15,169.84/20,942.64 = 10,479.36/x
  3. Step 3: Cross multiply
    15,169.84x = 20,942.64 × 10,479.36
  4. Step 4: Simplify right side
    15,169.84x = 219,465,463.91
  5. Step 5: Solve for x
    x = 219,465,463.91/15,169.84
  6. Step 6: Final answer
    x = 14,467.22

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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.