Home / 10,506.95-15,761.07-3,391.91

Finding the Fourth Proportional to 10,506.95, 15,761.07 and 3,391.91

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Solution

The fourth proportional to 10,506.95, 15,761.07 and 3,391.91 is: 5,088.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,506.95 : 15,761.07 = 3,391.91 : x
  2. Step 2: Convert to fraction form
    10,506.95/15,761.07 = 3,391.91/x
  3. Step 3: Cross multiply
    10,506.95x = 15,761.07 × 3,391.91
  4. Step 4: Simplify right side
    10,506.95x = 53,460,113.98
  5. Step 5: Solve for x
    x = 53,460,113.98/10,506.95
  6. Step 6: Final answer
    x = 5,088.07

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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.