Home / 11,943.91-16,482.63-6,638.71

Finding the Fourth Proportional to 11,943.91, 16,482.63 and 6,638.71

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Solution

The fourth proportional to 11,943.91, 16,482.63 and 6,638.71 is: 9,161.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,943.91 : 16,482.63 = 6,638.71 : x
  2. Step 2: Convert to fraction form
    11,943.91/16,482.63 = 6,638.71/x
  3. Step 3: Cross multiply
    11,943.91x = 16,482.63 × 6,638.71
  4. Step 4: Simplify right side
    11,943.91x = 109,423,400.61
  5. Step 5: Solve for x
    x = 109,423,400.61/11,943.91
  6. Step 6: Final answer
    x = 9,161.44

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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.