Home / 14,518.76-21,767.28-7,491.20

Finding the Fourth Proportional to 14,518.76, 21,767.28 and 7,491.20

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Solution

The fourth proportional to 14,518.76, 21,767.28 and 7,491.20 is: 11,231.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,518.76 : 21,767.28 = 7,491.20 : x
  2. Step 2: Convert to fraction form
    14,518.76/21,767.28 = 7,491.20/x
  3. Step 3: Cross multiply
    14,518.76x = 21,767.28 × 7,491.20
  4. Step 4: Simplify right side
    14,518.76x = 163,063,047.94
  5. Step 5: Solve for x
    x = 163,063,047.94/14,518.76
  6. Step 6: Final answer
    x = 11,231.20

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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.