Home / 11,108.45-15,331.01-6,392.63

Finding the Fourth Proportional to 11,108.45, 15,331.01 and 6,392.63

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Solution

The fourth proportional to 11,108.45, 15,331.01 and 6,392.63 is: 8,822.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,108.45 : 15,331.01 = 6,392.63 : x
  2. Step 2: Convert to fraction form
    11,108.45/15,331.01 = 6,392.63/x
  3. Step 3: Cross multiply
    11,108.45x = 15,331.01 × 6,392.63
  4. Step 4: Simplify right side
    11,108.45x = 98,005,365.84
  5. Step 5: Solve for x
    x = 98,005,365.84/11,108.45
  6. Step 6: Final answer
    x = 8,822.60

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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.