Home / 8,261.51-12,390.42-2,995.70

Finding the Fourth Proportional to 8,261.51, 12,390.42 and 2,995.70

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Solution

The fourth proportional to 8,261.51, 12,390.42 and 2,995.70 is: 4,492.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,261.51 : 12,390.42 = 2,995.70 : x
  2. Step 2: Convert to fraction form
    8,261.51/12,390.42 = 2,995.70/x
  3. Step 3: Cross multiply
    8,261.51x = 12,390.42 × 2,995.70
  4. Step 4: Simplify right side
    8,261.51x = 37,117,981.19
  5. Step 5: Solve for x
    x = 37,117,981.19/8,261.51
  6. Step 6: Final answer
    x = 4,492.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.