Home / 19,618.66-29,420.70-6,467.50

Finding the Fourth Proportional to 19,618.66, 29,420.70 and 6,467.50

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Solution

The fourth proportional to 19,618.66, 29,420.70 and 6,467.50 is: 9,698.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,618.66 : 29,420.70 = 6,467.50 : x
  2. Step 2: Convert to fraction form
    19,618.66/29,420.70 = 6,467.50/x
  3. Step 3: Cross multiply
    19,618.66x = 29,420.70 × 6,467.50
  4. Step 4: Simplify right side
    19,618.66x = 190,278,377.25
  5. Step 5: Solve for x
    x = 190,278,377.25/19,618.66
  6. Step 6: Final answer
    x = 9,698.85

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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.