Home / 21,214.16-29,275.62-11,782.73

Finding the Fourth Proportional to 21,214.16, 29,275.62 and 11,782.73

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Solution

The fourth proportional to 21,214.16, 29,275.62 and 11,782.73 is: 16,260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,214.16 : 29,275.62 = 11,782.73 : x
  2. Step 2: Convert to fraction form
    21,214.16/29,275.62 = 11,782.73/x
  3. Step 3: Cross multiply
    21,214.16x = 29,275.62 × 11,782.73
  4. Step 4: Simplify right side
    21,214.16x = 344,946,726.04
  5. Step 5: Solve for x
    x = 344,946,726.04/21,214.16
  6. Step 6: Final answer
    x = 16,260.21

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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.