Home / 15,470.25-21,348.75-8,396.94

Finding the Fourth Proportional to 15,470.25, 21,348.75 and 8,396.94

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Solution

The fourth proportional to 15,470.25, 21,348.75 and 8,396.94 is: 11,587.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,470.25 : 21,348.75 = 8,396.94 : x
  2. Step 2: Convert to fraction form
    15,470.25/21,348.75 = 8,396.94/x
  3. Step 3: Cross multiply
    15,470.25x = 21,348.75 × 8,396.94
  4. Step 4: Simplify right side
    15,470.25x = 179,264,172.83
  5. Step 5: Solve for x
    x = 179,264,172.83/15,470.25
  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.