Home / 14,619.60-21,945.60-9,079.20

Finding the Fourth Proportional to 14,619.60, 21,945.60 and 9,079.20

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Solution

The fourth proportional to 14,619.60, 21,945.60 and 9,079.20 is: 13,628.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,619.60 : 21,945.60 = 9,079.20 : x
  2. Step 2: Convert to fraction form
    14,619.60/21,945.60 = 9,079.20/x
  3. Step 3: Cross multiply
    14,619.60x = 21,945.60 × 9,079.20
  4. Step 4: Simplify right side
    14,619.60x = 199,248,491.52
  5. Step 5: Solve for x
    x = 199,248,491.52/14,619.60
  6. Step 6: Final answer
    x = 13,628.86

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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.