Home / 15,362.68-21,202.56-8,649.64

Finding the Fourth Proportional to 15,362.68, 21,202.56 and 8,649.64

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Solution

The fourth proportional to 15,362.68, 21,202.56 and 8,649.64 is: 11,937.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.68 : 21,202.56 = 8,649.64 : x
  2. Step 2: Convert to fraction form
    15,362.68/21,202.56 = 8,649.64/x
  3. Step 3: Cross multiply
    15,362.68x = 21,202.56 × 8,649.64
  4. Step 4: Simplify right side
    15,362.68x = 183,394,511.08
  5. Step 5: Solve for x
    x = 183,394,511.08/15,362.68
  6. Step 6: Final answer
    x = 11,937.66

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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.