Home / 8,631.49-12,943.67-2,706.40

Finding the Fourth Proportional to 8,631.49, 12,943.67 and 2,706.40

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Solution

The fourth proportional to 8,631.49, 12,943.67 and 2,706.40 is: 4,058.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,631.49 : 12,943.67 = 2,706.40 : x
  2. Step 2: Convert to fraction form
    8,631.49/12,943.67 = 2,706.40/x
  3. Step 3: Cross multiply
    8,631.49x = 12,943.67 × 2,706.40
  4. Step 4: Simplify right side
    8,631.49x = 35,030,748.49
  5. Step 5: Solve for x
    x = 35,030,748.49/8,631.49
  6. Step 6: Final answer
    x = 4,058.48

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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.