Home / 11,106.24-15,327.06-6,390.48

Finding the Fourth Proportional to 11,106.24, 15,327.06 and 6,390.48

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Solution

The fourth proportional to 11,106.24, 15,327.06 and 6,390.48 is: 8,819.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,106.24 : 15,327.06 = 6,390.48 : x
  2. Step 2: Convert to fraction form
    11,106.24/15,327.06 = 6,390.48/x
  3. Step 3: Cross multiply
    11,106.24x = 15,327.06 × 6,390.48
  4. Step 4: Simplify right side
    11,106.24x = 97,947,270.39
  5. Step 5: Solve for x
    x = 97,947,270.39/11,106.24
  6. Step 6: Final answer
    x = 8,819.12

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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.