Home / 11,901.90-16,425.27-6,866.13

Finding the Fourth Proportional to 11,901.90, 16,425.27 and 6,866.13

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Solution

The fourth proportional to 11,901.90, 16,425.27 and 6,866.13 is: 9,475.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,901.90 : 16,425.27 = 6,866.13 : x
  2. Step 2: Convert to fraction form
    11,901.90/16,425.27 = 6,866.13/x
  3. Step 3: Cross multiply
    11,901.90x = 16,425.27 × 6,866.13
  4. Step 4: Simplify right side
    11,901.90x = 112,778,039.11
  5. Step 5: Solve for x
    x = 112,778,039.11/11,901.90
  6. Step 6: Final answer
    x = 9,475.63

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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.