Home / 15,628.09-21,565.93-8,553.14

Finding the Fourth Proportional to 15,628.09, 21,565.93 and 8,553.14

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Solution

The fourth proportional to 15,628.09, 21,565.93 and 8,553.14 is: 11,802.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,628.09 : 21,565.93 = 8,553.14 : x
  2. Step 2: Convert to fraction form
    15,628.09/21,565.93 = 8,553.14/x
  3. Step 3: Cross multiply
    15,628.09x = 21,565.93 × 8,553.14
  4. Step 4: Simplify right side
    15,628.09x = 184,456,375.75
  5. Step 5: Solve for x
    x = 184,456,375.75/15,628.09
  6. Step 6: Final answer
    x = 11,802.88

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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.