Home / 9,165.40-13,751.70-3,617.80

Finding the Fourth Proportional to 9,165.40, 13,751.70 and 3,617.80

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Solution

The fourth proportional to 9,165.40, 13,751.70 and 3,617.80 is: 5,428.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,165.40 : 13,751.70 = 3,617.80 : x
  2. Step 2: Convert to fraction form
    9,165.40/13,751.70 = 3,617.80/x
  3. Step 3: Cross multiply
    9,165.40x = 13,751.70 × 3,617.80
  4. Step 4: Simplify right side
    9,165.40x = 49,750,900.26
  5. Step 5: Solve for x
    x = 49,750,900.26/9,165.40
  6. Step 6: Final answer
    x = 5,428.12

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1.5x scale

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.