Home / 13,775.08-20,663.05-6,560.68

Finding the Fourth Proportional to 13,775.08, 20,663.05 and 6,560.68

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Solution

The fourth proportional to 13,775.08, 20,663.05 and 6,560.68 is: 9,841.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.08 : 20,663.05 = 6,560.68 : x
  2. Step 2: Convert to fraction form
    13,775.08/20,663.05 = 6,560.68/x
  3. Step 3: Cross multiply
    13,775.08x = 20,663.05 × 6,560.68
  4. Step 4: Simplify right side
    13,775.08x = 135,563,658.87
  5. Step 5: Solve for x
    x = 135,563,658.87/13,775.08
  6. Step 6: Final answer
    x = 9,841.22

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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.