Home / 13,776.05-20,666.64-6,375.62

Finding the Fourth Proportional to 13,776.05, 20,666.64 and 6,375.62

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Solution

The fourth proportional to 13,776.05, 20,666.64 and 6,375.62 is: 9,564.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,776.05 : 20,666.64 = 6,375.62 : x
  2. Step 2: Convert to fraction form
    13,776.05/20,666.64 = 6,375.62/x
  3. Step 3: Cross multiply
    13,776.05x = 20,666.64 × 6,375.62
  4. Step 4: Simplify right side
    13,776.05x = 131,762,643.32
  5. Step 5: Solve for x
    x = 131,762,643.32/13,776.05
  6. Step 6: Final answer
    x = 9,564.62

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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.