Home / 9,515.80-13,133.18-5,539.10

Finding the Fourth Proportional to 9,515.80, 13,133.18 and 5,539.10

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Solution

The fourth proportional to 9,515.80, 13,133.18 and 5,539.10 is: 7,644.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,515.80 : 13,133.18 = 5,539.10 : x
  2. Step 2: Convert to fraction form
    9,515.80/13,133.18 = 5,539.10/x
  3. Step 3: Cross multiply
    9,515.80x = 13,133.18 × 5,539.10
  4. Step 4: Simplify right side
    9,515.80x = 72,745,997.34
  5. Step 5: Solve for x
    x = 72,745,997.34/9,515.80
  6. Step 6: Final answer
    x = 7,644.76

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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.