Home / 8,426.19-11,629.23-7,007.45

Finding the Fourth Proportional to 8,426.19, 11,629.23 and 7,007.45

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Solution

The fourth proportional to 8,426.19, 11,629.23 and 7,007.45 is: 9,671.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,426.19 : 11,629.23 = 7,007.45 : x
  2. Step 2: Convert to fraction form
    8,426.19/11,629.23 = 7,007.45/x
  3. Step 3: Cross multiply
    8,426.19x = 11,629.23 × 7,007.45
  4. Step 4: Simplify right side
    8,426.19x = 81,491,247.76
  5. Step 5: Solve for x
    x = 81,491,247.76/8,426.19
  6. Step 6: Final answer
    x = 9,671.19

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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.