Home / 14,115.13-21,172.69-4,881.13

Finding the Fourth Proportional to 14,115.13, 21,172.69 and 4,881.13

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Solution

The fourth proportional to 14,115.13, 21,172.69 and 4,881.13 is: 7,321.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,115.13 : 21,172.69 = 4,881.13 : x
  2. Step 2: Convert to fraction form
    14,115.13/21,172.69 = 4,881.13/x
  3. Step 3: Cross multiply
    14,115.13x = 21,172.69 × 4,881.13
  4. Step 4: Simplify right side
    14,115.13x = 103,346,534.27
  5. Step 5: Solve for x
    x = 103,346,534.27/14,115.13
  6. Step 6: Final answer
    x = 7,321.69

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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.