Home / 9,801.60-13,527.36-5,611.20

Finding the Fourth Proportional to 9,801.60, 13,527.36 and 5,611.20

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Solution

The fourth proportional to 9,801.60, 13,527.36 and 5,611.20 is: 7,744.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,801.60 : 13,527.36 = 5,611.20 : x
  2. Step 2: Convert to fraction form
    9,801.60/13,527.36 = 5,611.20/x
  3. Step 3: Cross multiply
    9,801.60x = 13,527.36 × 5,611.20
  4. Step 4: Simplify right side
    9,801.60x = 75,904,722.43
  5. Step 5: Solve for x
    x = 75,904,722.43/9,801.60
  6. Step 6: Final answer
    x = 7,744.12

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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.