Home / 13,549.76-20,320.41-8,001.62

Finding the Fourth Proportional to 13,549.76, 20,320.41 and 8,001.62

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Solution

The fourth proportional to 13,549.76, 20,320.41 and 8,001.62 is: 11,999.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,549.76 : 20,320.41 = 8,001.62 : x
  2. Step 2: Convert to fraction form
    13,549.76/20,320.41 = 8,001.62/x
  3. Step 3: Cross multiply
    13,549.76x = 20,320.41 × 8,001.62
  4. Step 4: Simplify right side
    13,549.76x = 162,596,199.06
  5. Step 5: Solve for x
    x = 162,596,199.06/13,549.76
  6. Step 6: Final answer
    x = 11,999.93

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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.