Home / 8,629.40-11,904.84-5,440.19

Finding the Fourth Proportional to 8,629.40, 11,904.84 and 5,440.19

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Solution

The fourth proportional to 8,629.40, 11,904.84 and 5,440.19 is: 7,505.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,629.40 : 11,904.84 = 5,440.19 : x
  2. Step 2: Convert to fraction form
    8,629.40/11,904.84 = 5,440.19/x
  3. Step 3: Cross multiply
    8,629.40x = 11,904.84 × 5,440.19
  4. Step 4: Simplify right side
    8,629.40x = 64,764,532.00
  5. Step 5: Solve for x
    x = 64,764,532.00/8,629.40
  6. Step 6: Final answer
    x = 7,505.10

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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.