Home / 11,101.79-15,311.84-6,624.59

Finding the Fourth Proportional to 11,101.79, 15,311.84 and 6,624.59

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Solution

The fourth proportional to 11,101.79, 15,311.84 and 6,624.59 is: 9,136.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,101.79 : 15,311.84 = 6,624.59 : x
  2. Step 2: Convert to fraction form
    11,101.79/15,311.84 = 6,624.59/x
  3. Step 3: Cross multiply
    11,101.79x = 15,311.84 × 6,624.59
  4. Step 4: Simplify right side
    11,101.79x = 101,434,552.46
  5. Step 5: Solve for x
    x = 101,434,552.46/11,101.79
  6. Step 6: Final answer
    x = 9,136.77

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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.