Home / 14,630.78-21,948.47-4,767.78

Finding the Fourth Proportional to 14,630.78, 21,948.47 and 4,767.78

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Solution

The fourth proportional to 14,630.78, 21,948.47 and 4,767.78 is: 7,152.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,630.78 : 21,948.47 = 4,767.78 : x
  2. Step 2: Convert to fraction form
    14,630.78/21,948.47 = 4,767.78/x
  3. Step 3: Cross multiply
    14,630.78x = 21,948.47 × 4,767.78
  4. Step 4: Simplify right side
    14,630.78x = 104,645,552.64
  5. Step 5: Solve for x
    x = 104,645,552.64/14,630.78
  6. Step 6: Final answer
    x = 7,152.42

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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.