Home / 11,220.42-15,484.05-6,505.14

Finding the Fourth Proportional to 11,220.42, 15,484.05 and 6,505.14

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Solution

The fourth proportional to 11,220.42, 15,484.05 and 6,505.14 is: 8,977.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,220.42 : 15,484.05 = 6,505.14 : x
  2. Step 2: Convert to fraction form
    11,220.42/15,484.05 = 6,505.14/x
  3. Step 3: Cross multiply
    11,220.42x = 15,484.05 × 6,505.14
  4. Step 4: Simplify right side
    11,220.42x = 100,725,913.02
  5. Step 5: Solve for x
    x = 100,725,913.02/11,220.42
  6. Step 6: Final answer
    x = 8,977.02

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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.