Home / 15,470.36-21,349.20-8,396.82

Finding the Fourth Proportional to 15,470.36, 21,349.20 and 8,396.82

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Solution

The fourth proportional to 15,470.36, 21,349.20 and 8,396.82 is: 11,587.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.36 : 21,349.20 = 8,396.82 : x
  2. Step 2: Convert to fraction form
    15,470.36/21,349.20 = 8,396.82/x
  3. Step 3: Cross multiply
    15,470.36x = 21,349.20 × 8,396.82
  4. Step 4: Simplify right side
    15,470.36x = 179,265,389.54
  5. Step 5: Solve for x
    x = 179,265,389.54/15,470.36
  6. Step 6: Final answer
    x = 11,587.67

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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.