Home / 11,397.40-15,728.74-6,362.44

Finding the Fourth Proportional to 11,397.40, 15,728.74 and 6,362.44

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Solution

The fourth proportional to 11,397.40, 15,728.74 and 6,362.44 is: 8,780.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,397.40 : 15,728.74 = 6,362.44 : x
  2. Step 2: Convert to fraction form
    11,397.40/15,728.74 = 6,362.44/x
  3. Step 3: Cross multiply
    11,397.40x = 15,728.74 × 6,362.44
  4. Step 4: Simplify right side
    11,397.40x = 100,073,164.53
  5. Step 5: Solve for x
    x = 100,073,164.53/11,397.40
  6. Step 6: Final answer
    x = 8,780.35

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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.