Home / 15,943.23-21,990.29-10,628.82

Finding the Fourth Proportional to 15,943.23, 21,990.29 and 10,628.82

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Solution

The fourth proportional to 15,943.23, 21,990.29 and 10,628.82 is: 14,660.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,943.23 : 21,990.29 = 10,628.82 : x
  2. Step 2: Convert to fraction form
    15,943.23/21,990.29 = 10,628.82/x
  3. Step 3: Cross multiply
    15,943.23x = 21,990.29 × 10,628.82
  4. Step 4: Simplify right side
    15,943.23x = 233,730,781.01
  5. Step 5: Solve for x
    x = 233,730,781.01/15,943.23
  6. Step 6: Final answer
    x = 14,660.19

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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.