Home / 15,710.09-21,676.66-9,338.94

Finding the Fourth Proportional to 15,710.09, 21,676.66 and 9,338.94

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Solution

The fourth proportional to 15,710.09, 21,676.66 and 9,338.94 is: 12,885.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,710.09 : 21,676.66 = 9,338.94 : x
  2. Step 2: Convert to fraction form
    15,710.09/21,676.66 = 9,338.94/x
  3. Step 3: Cross multiply
    15,710.09x = 21,676.66 × 9,338.94
  4. Step 4: Simplify right side
    15,710.09x = 202,436,872.06
  5. Step 5: Solve for x
    x = 202,436,872.06/15,710.09
  6. Step 6: Final answer
    x = 12,885.79

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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.