Home / 8,126.34-12,154.31-4,786.63

Finding the Fourth Proportional to 8,126.34, 12,154.31 and 4,786.63

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Solution

The fourth proportional to 8,126.34, 12,154.31 and 4,786.63 is: 7,159.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.34 : 12,154.31 = 4,786.63 : x
  2. Step 2: Convert to fraction form
    8,126.34/12,154.31 = 4,786.63/x
  3. Step 3: Cross multiply
    8,126.34x = 12,154.31 × 4,786.63
  4. Step 4: Simplify right side
    8,126.34x = 58,178,166.46
  5. Step 5: Solve for x
    x = 58,178,166.46/8,126.34
  6. Step 6: Final answer
    x = 7,159.21

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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.