Home / 14,978.24-20,670.36-8,263.95

Finding the Fourth Proportional to 14,978.24, 20,670.36 and 8,263.95

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Solution

The fourth proportional to 14,978.24, 20,670.36 and 8,263.95 is: 11,404.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,978.24 : 20,670.36 = 8,263.95 : x
  2. Step 2: Convert to fraction form
    14,978.24/20,670.36 = 8,263.95/x
  3. Step 3: Cross multiply
    14,978.24x = 20,670.36 × 8,263.95
  4. Step 4: Simplify right side
    14,978.24x = 170,818,821.52
  5. Step 5: Solve for x
    x = 170,818,821.52/14,978.24
  6. Step 6: Final answer
    x = 11,404.47

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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.