Home / 10,913.53-15,057.01-6,663.06

Finding the Fourth Proportional to 10,913.53, 15,057.01 and 6,663.06

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Solution

The fourth proportional to 10,913.53, 15,057.01 and 6,663.06 is: 9,192.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,913.53 : 15,057.01 = 6,663.06 : x
  2. Step 2: Convert to fraction form
    10,913.53/15,057.01 = 6,663.06/x
  3. Step 3: Cross multiply
    10,913.53x = 15,057.01 × 6,663.06
  4. Step 4: Simplify right side
    10,913.53x = 100,325,652.45
  5. Step 5: Solve for x
    x = 100,325,652.45/10,913.53
  6. Step 6: Final answer
    x = 9,192.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.