Home / 6,629.04-9,139.57-5,429.60

Finding the Fourth Proportional to 6,629.04, 9,139.57 and 5,429.60

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Solution

The fourth proportional to 6,629.04, 9,139.57 and 5,429.60 is: 7,485.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,629.04 : 9,139.57 = 5,429.60 : x
  2. Step 2: Convert to fraction form
    6,629.04/9,139.57 = 5,429.60/x
  3. Step 3: Cross multiply
    6,629.04x = 9,139.57 × 5,429.60
  4. Step 4: Simplify right side
    6,629.04x = 49,624,182.12
  5. Step 5: Solve for x
    x = 49,624,182.12/6,629.04
  6. Step 6: Final answer
    x = 7,485.88

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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.