Home / 11,948.08-16,488.96-6,643

Finding the Fourth Proportional to 11,948.08, 16,488.96 and 6,643

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Solution

The fourth proportional to 11,948.08, 16,488.96 and 6,643 is: 9,167.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,948.08 : 16,488.96 = 6,643 : x
  2. Step 2: Convert to fraction form
    11,948.08/16,488.96 = 6,643/x
  3. Step 3: Cross multiply
    11,948.08x = 16,488.96 × 6,643
  4. Step 4: Simplify right side
    11,948.08x = 109,536,161.28
  5. Step 5: Solve for x
    x = 109,536,161.28/11,948.08
  6. Step 6: Final answer
    x = 9,167.68

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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.