Home / 16,909.71-25,364.57-4,428.42

Finding the Fourth Proportional to 16,909.71, 25,364.57 and 4,428.42

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Solution

The fourth proportional to 16,909.71, 25,364.57 and 4,428.42 is: 6,642.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,909.71 : 25,364.57 = 4,428.42 : x
  2. Step 2: Convert to fraction form
    16,909.71/25,364.57 = 4,428.42/x
  3. Step 3: Cross multiply
    16,909.71x = 25,364.57 × 4,428.42
  4. Step 4: Simplify right side
    16,909.71x = 112,324,946.94
  5. Step 5: Solve for x
    x = 112,324,946.94/16,909.71
  6. Step 6: Final answer
    x = 6,642.63

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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.