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Finding the Fourth Proportional to 13,897.68, 20,844.36 and 6,501.48

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Solution

The fourth proportional to 13,897.68, 20,844.36 and 6,501.48 is: 9,751.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,897.68 : 20,844.36 = 6,501.48 : x
  2. Step 2: Convert to fraction form
    13,897.68/20,844.36 = 6,501.48/x
  3. Step 3: Cross multiply
    13,897.68x = 20,844.36 × 6,501.48
  4. Step 4: Simplify right side
    13,897.68x = 135,519,189.65
  5. Step 5: Solve for x
    x = 135,519,189.65/13,897.68
  6. Step 6: Final answer
    x = 9,751.21

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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.