Home / 11,001.57-16,500.63-3,980.49

Finding the Fourth Proportional to 11,001.57, 16,500.63 and 3,980.49

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Solution

The fourth proportional to 11,001.57, 16,500.63 and 3,980.49 is: 5,970.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,001.57 : 16,500.63 = 3,980.49 : x
  2. Step 2: Convert to fraction form
    11,001.57/16,500.63 = 3,980.49/x
  3. Step 3: Cross multiply
    11,001.57x = 16,500.63 × 3,980.49
  4. Step 4: Simplify right side
    11,001.57x = 65,680,592.71
  5. Step 5: Solve for x
    x = 65,680,592.71/11,001.57
  6. Step 6: Final answer
    x = 5,970.11

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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.