Home / 14,279.92-21,416.43-5,509.24

Finding the Fourth Proportional to 14,279.92, 21,416.43 and 5,509.24

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Solution

The fourth proportional to 14,279.92, 21,416.43 and 5,509.24 is: 8,262.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,279.92 : 21,416.43 = 5,509.24 : x
  2. Step 2: Convert to fraction form
    14,279.92/21,416.43 = 5,509.24/x
  3. Step 3: Cross multiply
    14,279.92x = 21,416.43 × 5,509.24
  4. Step 4: Simplify right side
    14,279.92x = 117,988,252.81
  5. Step 5: Solve for x
    x = 117,988,252.81/14,279.92
  6. Step 6: Final answer
    x = 8,262.53

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1.5x scale

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.