Home / 21,206.92-29,265.70-11,647.72

Finding the Fourth Proportional to 21,206.92, 29,265.70 and 11,647.72

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Solution

The fourth proportional to 21,206.92, 29,265.70 and 11,647.72 is: 16,073.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206.92 : 29,265.70 = 11,647.72 : x
  2. Step 2: Convert to fraction form
    21,206.92/29,265.70 = 11,647.72/x
  3. Step 3: Cross multiply
    21,206.92x = 29,265.70 × 11,647.72
  4. Step 4: Simplify right side
    21,206.92x = 340,878,679.20
  5. Step 5: Solve for x
    x = 340,878,679.20/21,206.92
  6. Step 6: Final answer
    x = 16,073.94

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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.