Home / 15,737.99-21,718.31-8,664.26

Finding the Fourth Proportional to 15,737.99, 21,718.31 and 8,664.26

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Solution

The fourth proportional to 15,737.99, 21,718.31 and 8,664.26 is: 11,956.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,737.99 : 21,718.31 = 8,664.26 : x
  2. Step 2: Convert to fraction form
    15,737.99/21,718.31 = 8,664.26/x
  3. Step 3: Cross multiply
    15,737.99x = 21,718.31 × 8,664.26
  4. Step 4: Simplify right side
    15,737.99x = 188,173,160.56
  5. Step 5: Solve for x
    x = 188,173,160.56/15,737.99
  6. Step 6: Final answer
    x = 11,956.62

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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.