Home / 21,206.19-29,265.35-11,646.87

Finding the Fourth Proportional to 21,206.19, 29,265.35 and 11,646.87

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Solution

The fourth proportional to 21,206.19, 29,265.35 and 11,646.87 is: 16,073.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,206.19 : 29,265.35 = 11,646.87 : x
  2. Step 2: Convert to fraction form
    21,206.19/29,265.35 = 11,646.87/x
  3. Step 3: Cross multiply
    21,206.19x = 29,265.35 × 11,646.87
  4. Step 4: Simplify right side
    21,206.19x = 340,849,726.95
  5. Step 5: Solve for x
    x = 340,849,726.95/21,206.19
  6. Step 6: Final answer
    x = 16,073.12

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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.