Home / 11,008.98-15,188.68-6,289.92

Finding the Fourth Proportional to 11,008.98, 15,188.68 and 6,289.92

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Solution

The fourth proportional to 11,008.98, 15,188.68 and 6,289.92 is: 8,677.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,008.98 : 15,188.68 = 6,289.92 : x
  2. Step 2: Convert to fraction form
    11,008.98/15,188.68 = 6,289.92/x
  3. Step 3: Cross multiply
    11,008.98x = 15,188.68 × 6,289.92
  4. Step 4: Simplify right side
    11,008.98x = 95,535,582.11
  5. Step 5: Solve for x
    x = 95,535,582.11/11,008.98
  6. Step 6: Final answer
    x = 8,677.97

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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.