Home / 14,252.78-21,390.70-7,329.26

Finding the Fourth Proportional to 14,252.78, 21,390.70 and 7,329.26

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Solution

The fourth proportional to 14,252.78, 21,390.70 and 7,329.26 is: 10,999.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,252.78 : 21,390.70 = 7,329.26 : x
  2. Step 2: Convert to fraction form
    14,252.78/21,390.70 = 7,329.26/x
  3. Step 3: Cross multiply
    14,252.78x = 21,390.70 × 7,329.26
  4. Step 4: Simplify right side
    14,252.78x = 156,778,001.88
  5. Step 5: Solve for x
    x = 156,778,001.88/14,252.78
  6. Step 6: Final answer
    x = 10,999.82

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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.