Home / 14,519.08-21,672.05-13,287.88

Finding the Fourth Proportional to 14,519.08, 21,672.05 and 13,287.88

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Solution

The fourth proportional to 14,519.08, 21,672.05 and 13,287.88 is: 19,834.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,519.08 : 21,672.05 = 13,287.88 : x
  2. Step 2: Convert to fraction form
    14,519.08/21,672.05 = 13,287.88/x
  3. Step 3: Cross multiply
    14,519.08x = 21,672.05 × 13,287.88
  4. Step 4: Simplify right side
    14,519.08x = 287,975,599.75
  5. Step 5: Solve for x
    x = 287,975,599.75/14,519.08
  6. Step 6: Final answer
    x = 19,834.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.