Home / 14,278.23-21,378.47-11,104.65

Finding the Fourth Proportional to 14,278.23, 21,378.47 and 11,104.65

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Solution

The fourth proportional to 14,278.23, 21,378.47 and 11,104.65 is: 16,626.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,278.23 : 21,378.47 = 11,104.65 : x
  2. Step 2: Convert to fraction form
    14,278.23/21,378.47 = 11,104.65/x
  3. Step 3: Cross multiply
    14,278.23x = 21,378.47 × 11,104.65
  4. Step 4: Simplify right side
    14,278.23x = 237,400,371.36
  5. Step 5: Solve for x
    x = 237,400,371.36/14,278.23
  6. Step 6: Final answer
    x = 16,626.74

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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.