Home / 14,001.45-21,001.49-5,235.68

Finding the Fourth Proportional to 14,001.45, 21,001.49 and 5,235.68

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Solution

The fourth proportional to 14,001.45, 21,001.49 and 5,235.68 is: 7,853.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.45 : 21,001.49 = 5,235.68 : x
  2. Step 2: Convert to fraction form
    14,001.45/21,001.49 = 5,235.68/x
  3. Step 3: Cross multiply
    14,001.45x = 21,001.49 × 5,235.68
  4. Step 4: Simplify right side
    14,001.45x = 109,957,053.33
  5. Step 5: Solve for x
    x = 109,957,053.33/14,001.45
  6. Step 6: Final answer
    x = 7,853.26

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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.