Home / 11,862.13-16,336.42-11,603.79

Finding the Fourth Proportional to 11,862.13, 16,336.42 and 11,603.79

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Solution

The fourth proportional to 11,862.13, 16,336.42 and 11,603.79 is: 15,980.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,862.13 : 16,336.42 = 11,603.79 : x
  2. Step 2: Convert to fraction form
    11,862.13/16,336.42 = 11,603.79/x
  3. Step 3: Cross multiply
    11,862.13x = 16,336.42 × 11,603.79
  4. Step 4: Simplify right side
    11,862.13x = 189,564,358.02
  5. Step 5: Solve for x
    x = 189,564,358.02/11,862.13
  6. Step 6: Final answer
    x = 15,980.63

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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.