Home / 19,640.12-29,464.80-6,492.49

Finding the Fourth Proportional to 19,640.12, 29,464.80 and 6,492.49

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Solution

The fourth proportional to 19,640.12, 29,464.80 and 6,492.49 is: 9,740.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,640.12 : 29,464.80 = 6,492.49 : x
  2. Step 2: Convert to fraction form
    19,640.12/29,464.80 = 6,492.49/x
  3. Step 3: Cross multiply
    19,640.12x = 29,464.80 × 6,492.49
  4. Step 4: Simplify right side
    19,640.12x = 191,299,919.35
  5. Step 5: Solve for x
    x = 191,299,919.35/19,640.12
  6. Step 6: Final answer
    x = 9,740.26

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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.