Home / 10,506.65-15,755.18-3,108.51

Finding the Fourth Proportional to 10,506.65, 15,755.18 and 3,108.51

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Solution

The fourth proportional to 10,506.65, 15,755.18 and 3,108.51 is: 4,661.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,506.65 : 15,755.18 = 3,108.51 : x
  2. Step 2: Convert to fraction form
    10,506.65/15,755.18 = 3,108.51/x
  3. Step 3: Cross multiply
    10,506.65x = 15,755.18 × 3,108.51
  4. Step 4: Simplify right side
    10,506.65x = 48,975,119.04
  5. Step 5: Solve for x
    x = 48,975,119.04/10,506.65
  6. Step 6: Final answer
    x = 4,661.35

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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.