Home / 11,908.18-16,426.02-9,386.38

Finding the Fourth Proportional to 11,908.18, 16,426.02 and 9,386.38

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Solution

The fourth proportional to 11,908.18, 16,426.02 and 9,386.38 is: 12,947.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,908.18 : 16,426.02 = 9,386.38 : x
  2. Step 2: Convert to fraction form
    11,908.18/16,426.02 = 9,386.38/x
  3. Step 3: Cross multiply
    11,908.18x = 16,426.02 × 9,386.38
  4. Step 4: Simplify right side
    11,908.18x = 154,180,865.61
  5. Step 5: Solve for x
    x = 154,180,865.61/11,908.18
  6. Step 6: Final answer
    x = 12,947.48

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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.