Home / 14,778.24-22,168.56-4,390

Finding the Fourth Proportional to 14,778.24, 22,168.56 and 4,390

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Solution

The fourth proportional to 14,778.24, 22,168.56 and 4,390 is: 6,585.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,778.24 : 22,168.56 = 4,390 : x
  2. Step 2: Convert to fraction form
    14,778.24/22,168.56 = 4,390/x
  3. Step 3: Cross multiply
    14,778.24x = 22,168.56 × 4,390
  4. Step 4: Simplify right side
    14,778.24x = 97,319,978.40
  5. Step 5: Solve for x
    x = 97,319,978.40/14,778.24
  6. Step 6: Final answer
    x = 6,585.36

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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.