Home / 14,001.08-20,991.32-6,601.36

Finding the Fourth Proportional to 14,001.08, 20,991.32 and 6,601.36

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Solution

The fourth proportional to 14,001.08, 20,991.32 and 6,601.36 is: 9,897.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,001.08 : 20,991.32 = 6,601.36 : x
  2. Step 2: Convert to fraction form
    14,001.08/20,991.32 = 6,601.36/x
  3. Step 3: Cross multiply
    14,001.08x = 20,991.32 × 6,601.36
  4. Step 4: Simplify right side
    14,001.08x = 138,571,260.20
  5. Step 5: Solve for x
    x = 138,571,260.20/14,001.08
  6. Step 6: Final answer
    x = 9,897.18

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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.