Home / 21,214.73-29,275.18-11,782.69

Finding the Fourth Proportional to 21,214.73, 29,275.18 and 11,782.69

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Solution

The fourth proportional to 21,214.73, 29,275.18 and 11,782.69 is: 16,259.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.73 : 29,275.18 = 11,782.69 : x
  2. Step 2: Convert to fraction form
    21,214.73/29,275.18 = 11,782.69/x
  3. Step 3: Cross multiply
    21,214.73x = 29,275.18 × 11,782.69
  4. Step 4: Simplify right side
    21,214.73x = 344,940,267.99
  5. Step 5: Solve for x
    x = 344,940,267.99/21,214.73
  6. Step 6: Final answer
    x = 16,259.47

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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.