Home / 14,978.61-20,670.39-8,264.21

Finding the Fourth Proportional to 14,978.61, 20,670.39 and 8,264.21

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Solution

The fourth proportional to 14,978.61, 20,670.39 and 8,264.21 is: 11,404.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,978.61 : 20,670.39 = 8,264.21 : x
  2. Step 2: Convert to fraction form
    14,978.61/20,670.39 = 8,264.21/x
  3. Step 3: Cross multiply
    14,978.61x = 20,670.39 × 8,264.21
  4. Step 4: Simplify right side
    14,978.61x = 170,824,340.39
  5. Step 5: Solve for x
    x = 170,824,340.39/14,978.61
  6. Step 6: Final answer
    x = 11,404.55

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.