Home / 11,274.78-15,557.91-6,238.30

Finding the Fourth Proportional to 11,274.78, 15,557.91 and 6,238.30

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Solution

The fourth proportional to 11,274.78, 15,557.91 and 6,238.30 is: 8,608.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,274.78 : 15,557.91 = 6,238.30 : x
  2. Step 2: Convert to fraction form
    11,274.78/15,557.91 = 6,238.30/x
  3. Step 3: Cross multiply
    11,274.78x = 15,557.91 × 6,238.30
  4. Step 4: Simplify right side
    11,274.78x = 97,054,909.95
  5. Step 5: Solve for x
    x = 97,054,909.95/11,274.78
  6. Step 6: Final answer
    x = 8,608.14

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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.