Home / 11,929.68-16,462.85-6,624.18

Finding the Fourth Proportional to 11,929.68, 16,462.85 and 6,624.18

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Solution

The fourth proportional to 11,929.68, 16,462.85 and 6,624.18 is: 9,141.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,929.68 : 16,462.85 = 6,624.18 : x
  2. Step 2: Convert to fraction form
    11,929.68/16,462.85 = 6,624.18/x
  3. Step 3: Cross multiply
    11,929.68x = 16,462.85 × 6,624.18
  4. Step 4: Simplify right side
    11,929.68x = 109,052,848.59
  5. Step 5: Solve for x
    x = 109,052,848.59/11,929.68
  6. Step 6: Final answer
    x = 9,141.31

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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.