Home / 14,639.10-21,962.14-4,778.39

Finding the Fourth Proportional to 14,639.10, 21,962.14 and 4,778.39

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Solution

The fourth proportional to 14,639.10, 21,962.14 and 4,778.39 is: 7,168.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.10 : 21,962.14 = 4,778.39 : x
  2. Step 2: Convert to fraction form
    14,639.10/21,962.14 = 4,778.39/x
  3. Step 3: Cross multiply
    14,639.10x = 21,962.14 × 4,778.39
  4. Step 4: Simplify right side
    14,639.10x = 104,943,670.15
  5. Step 5: Solve for x
    x = 104,943,670.15/14,639.10
  6. Step 6: Final answer
    x = 7,168.72

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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.