Home / 14,616.74-20,172.29-8,647.44

Finding the Fourth Proportional to 14,616.74, 20,172.29 and 8,647.44

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Solution

The fourth proportional to 14,616.74, 20,172.29 and 8,647.44 is: 11,934.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,616.74 : 20,172.29 = 8,647.44 : x
  2. Step 2: Convert to fraction form
    14,616.74/20,172.29 = 8,647.44/x
  3. Step 3: Cross multiply
    14,616.74x = 20,172.29 × 8,647.44
  4. Step 4: Simplify right side
    14,616.74x = 174,438,624.20
  5. Step 5: Solve for x
    x = 174,438,624.20/14,616.74
  6. Step 6: Final answer
    x = 11,934.17

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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.