Home / 7,629.12-10,526.40-5,529.60

Finding the Fourth Proportional to 7,629.12, 10,526.40 and 5,529.60

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Solution

The fourth proportional to 7,629.12, 10,526.40 and 5,529.60 is: 7,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,629.12 : 10,526.40 = 5,529.60 : x
  2. Step 2: Convert to fraction form
    7,629.12/10,526.40 = 5,529.60/x
  3. Step 3: Cross multiply
    7,629.12x = 10,526.40 × 5,529.60
  4. Step 4: Simplify right side
    7,629.12x = 58,206,781.44
  5. Step 5: Solve for x
    x = 58,206,781.44/7,629.12
  6. Step 6: Final answer
    x = 7,629.55

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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.