Home / 14,728.58-20,315.09-9,691.19

Finding the Fourth Proportional to 14,728.58, 20,315.09 and 9,691.19

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Solution

The fourth proportional to 14,728.58, 20,315.09 and 9,691.19 is: 13,367.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,728.58 : 20,315.09 = 9,691.19 : x
  2. Step 2: Convert to fraction form
    14,728.58/20,315.09 = 9,691.19/x
  3. Step 3: Cross multiply
    14,728.58x = 20,315.09 × 9,691.19
  4. Step 4: Simplify right side
    14,728.58x = 196,877,397.06
  5. Step 5: Solve for x
    x = 196,877,397.06/14,728.58
  6. Step 6: Final answer
    x = 13,367.03

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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.