Home / 11,722.50-17,582.83-5,148.74

Finding the Fourth Proportional to 11,722.50, 17,582.83 and 5,148.74

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Solution

The fourth proportional to 11,722.50, 17,582.83 and 5,148.74 is: 7,722.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,722.50 : 17,582.83 = 5,148.74 : x
  2. Step 2: Convert to fraction form
    11,722.50/17,582.83 = 5,148.74/x
  3. Step 3: Cross multiply
    11,722.50x = 17,582.83 × 5,148.74
  4. Step 4: Simplify right side
    11,722.50x = 90,529,420.13
  5. Step 5: Solve for x
    x = 90,529,420.13/11,722.50
  6. Step 6: Final answer
    x = 7,722.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.