Home / 9,986.46-13,781.06-5,510

Finding the Fourth Proportional to 9,986.46, 13,781.06 and 5,510

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Solution

The fourth proportional to 9,986.46, 13,781.06 and 5,510 is: 7,603.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.46 : 13,781.06 = 5,510 : x
  2. Step 2: Convert to fraction form
    9,986.46/13,781.06 = 5,510/x
  3. Step 3: Cross multiply
    9,986.46x = 13,781.06 × 5,510
  4. Step 4: Simplify right side
    9,986.46x = 75,933,640.60
  5. Step 5: Solve for x
    x = 75,933,640.60/9,986.46
  6. Step 6: Final answer
    x = 7,603.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.