Home / 15,380.84-21,224.23-8,665.27

Finding the Fourth Proportional to 15,380.84, 21,224.23 and 8,665.27

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Solution

The fourth proportional to 15,380.84, 21,224.23 and 8,665.27 is: 11,957.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,380.84 : 21,224.23 = 8,665.27 : x
  2. Step 2: Convert to fraction form
    15,380.84/21,224.23 = 8,665.27/x
  3. Step 3: Cross multiply
    15,380.84x = 21,224.23 × 8,665.27
  4. Step 4: Simplify right side
    15,380.84x = 183,913,608.77
  5. Step 5: Solve for x
    x = 183,913,608.77/15,380.84
  6. Step 6: Final answer
    x = 11,957.32

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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.