Home / 21,197.19-29,253.65-11,765.69

Finding the Fourth Proportional to 21,197.19, 29,253.65 and 11,765.69

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Solution

The fourth proportional to 21,197.19, 29,253.65 and 11,765.69 is: 16,237.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,197.19 : 29,253.65 = 11,765.69 : x
  2. Step 2: Convert to fraction form
    21,197.19/29,253.65 = 11,765.69/x
  3. Step 3: Cross multiply
    21,197.19x = 29,253.65 × 11,765.69
  4. Step 4: Simplify right side
    21,197.19x = 344,189,172.17
  5. Step 5: Solve for x
    x = 344,189,172.17/21,197.19
  6. Step 6: Final answer
    x = 16,237.49

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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.