Home / 9,929.08-13,690.38-6,392.44

Finding the Fourth Proportional to 9,929.08, 13,690.38 and 6,392.44

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Solution

The fourth proportional to 9,929.08, 13,690.38 and 6,392.44 is: 8,814.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.08 : 13,690.38 = 6,392.44 : x
  2. Step 2: Convert to fraction form
    9,929.08/13,690.38 = 6,392.44/x
  3. Step 3: Cross multiply
    9,929.08x = 13,690.38 × 6,392.44
  4. Step 4: Simplify right side
    9,929.08x = 87,514,932.73
  5. Step 5: Solve for x
    x = 87,514,932.73/9,929.08
  6. Step 6: Final answer
    x = 8,814.00

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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.