Home / 11,144.59-15,378.65-6,427.96

Finding the Fourth Proportional to 11,144.59, 15,378.65 and 6,427.96

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Solution

The fourth proportional to 11,144.59, 15,378.65 and 6,427.96 is: 8,870.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.59 : 15,378.65 = 6,427.96 : x
  2. Step 2: Convert to fraction form
    11,144.59/15,378.65 = 6,427.96/x
  3. Step 3: Cross multiply
    11,144.59x = 15,378.65 × 6,427.96
  4. Step 4: Simplify right side
    11,144.59x = 98,853,423.23
  5. Step 5: Solve for x
    x = 98,853,423.23/11,144.59
  6. Step 6: Final answer
    x = 8,870.08

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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.