Home / 11,871.24-16,371.58-7,617.40

Finding the Fourth Proportional to 11,871.24, 16,371.58 and 7,617.40

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Solution

The fourth proportional to 11,871.24, 16,371.58 and 7,617.40 is: 10,505.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,871.24 : 16,371.58 = 7,617.40 : x
  2. Step 2: Convert to fraction form
    11,871.24/16,371.58 = 7,617.40/x
  3. Step 3: Cross multiply
    11,871.24x = 16,371.58 × 7,617.40
  4. Step 4: Simplify right side
    11,871.24x = 124,708,873.49
  5. Step 5: Solve for x
    x = 124,708,873.49/11,871.24
  6. Step 6: Final answer
    x = 10,505.13

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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.