Home / 9,739.59-13,431.81-6,381.18

Finding the Fourth Proportional to 9,739.59, 13,431.81 and 6,381.18

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Solution

The fourth proportional to 9,739.59, 13,431.81 and 6,381.18 is: 8,800.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,739.59 : 13,431.81 = 6,381.18 : x
  2. Step 2: Convert to fraction form
    9,739.59/13,431.81 = 6,381.18/x
  3. Step 3: Cross multiply
    9,739.59x = 13,431.81 × 6,381.18
  4. Step 4: Simplify right side
    9,739.59x = 85,710,797.34
  5. Step 5: Solve for x
    x = 85,710,797.34/9,739.59
  6. Step 6: Final answer
    x = 8,800.25

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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.