Home / 15,382.91-21,225.83-8,575.44

Finding the Fourth Proportional to 15,382.91, 21,225.83 and 8,575.44

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Solution

The fourth proportional to 15,382.91, 21,225.83 and 8,575.44 is: 11,832.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,382.91 : 21,225.83 = 8,575.44 : x
  2. Step 2: Convert to fraction form
    15,382.91/21,225.83 = 8,575.44/x
  3. Step 3: Cross multiply
    15,382.91x = 21,225.83 × 8,575.44
  4. Step 4: Simplify right side
    15,382.91x = 182,020,788.74
  5. Step 5: Solve for x
    x = 182,020,788.74/15,382.91
  6. Step 6: Final answer
    x = 11,832.67

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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.