Home / 9,986.60-13,781.30-5,510.32

Finding the Fourth Proportional to 9,986.60, 13,781.30 and 5,510.32

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Solution

The fourth proportional to 9,986.60, 13,781.30 and 5,510.32 is: 7,604.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,986.60 : 13,781.30 = 5,510.32 : x
  2. Step 2: Convert to fraction form
    9,986.60/13,781.30 = 5,510.32/x
  3. Step 3: Cross multiply
    9,986.60x = 13,781.30 × 5,510.32
  4. Step 4: Simplify right side
    9,986.60x = 75,939,373.02
  5. Step 5: Solve for x
    x = 75,939,373.02/9,986.60
  6. Step 6: Final answer
    x = 7,604.13

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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.