Home / 7,381.76-10,186.98-4,238.15

Finding the Fourth Proportional to 7,381.76, 10,186.98 and 4,238.15

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Solution

The fourth proportional to 7,381.76, 10,186.98 and 4,238.15 is: 5,848.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,381.76 : 10,186.98 = 4,238.15 : x
  2. Step 2: Convert to fraction form
    7,381.76/10,186.98 = 4,238.15/x
  3. Step 3: Cross multiply
    7,381.76x = 10,186.98 × 4,238.15
  4. Step 4: Simplify right side
    7,381.76x = 43,173,949.29
  5. Step 5: Solve for x
    x = 43,173,949.29/7,381.76
  6. Step 6: Final answer
    x = 5,848.73

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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.