Home / 14,478.88-21,718.80-4,618.72

Finding the Fourth Proportional to 14,478.88, 21,718.80 and 4,618.72

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Solution

The fourth proportional to 14,478.88, 21,718.80 and 4,618.72 is: 6,928.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,478.88 : 21,718.80 = 4,618.72 : x
  2. Step 2: Convert to fraction form
    14,478.88/21,718.80 = 4,618.72/x
  3. Step 3: Cross multiply
    14,478.88x = 21,718.80 × 4,618.72
  4. Step 4: Simplify right side
    14,478.88x = 100,313,055.94
  5. Step 5: Solve for x
    x = 100,313,055.94/14,478.88
  6. Step 6: Final answer
    x = 6,928.23

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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.