Home / 14,345.10-21,512.21-5,578.02

Finding the Fourth Proportional to 14,345.10, 21,512.21 and 5,578.02

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Solution

The fourth proportional to 14,345.10, 21,512.21 and 5,578.02 is: 8,364.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,345.10 : 21,512.21 = 5,578.02 : x
  2. Step 2: Convert to fraction form
    14,345.10/21,512.21 = 5,578.02/x
  3. Step 3: Cross multiply
    14,345.10x = 21,512.21 × 5,578.02
  4. Step 4: Simplify right side
    14,345.10x = 119,995,509.73
  5. Step 5: Solve for x
    x = 119,995,509.73/14,345.10
  6. Step 6: Final answer
    x = 8,364.91

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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.