Home / 11,427.39-15,770.61-6,392.08

Finding the Fourth Proportional to 11,427.39, 15,770.61 and 6,392.08

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Solution

The fourth proportional to 11,427.39, 15,770.61 and 6,392.08 is: 8,821.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,427.39 : 15,770.61 = 6,392.08 : x
  2. Step 2: Convert to fraction form
    11,427.39/15,770.61 = 6,392.08/x
  3. Step 3: Cross multiply
    11,427.39x = 15,770.61 × 6,392.08
  4. Step 4: Simplify right side
    11,427.39x = 100,807,000.77
  5. Step 5: Solve for x
    x = 100,807,000.77/11,427.39
  6. Step 6: Final answer
    x = 8,821.52

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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.