Home / 8,538.17-11,783.45-5,181.83

Finding the Fourth Proportional to 8,538.17, 11,783.45 and 5,181.83

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Solution

The fourth proportional to 8,538.17, 11,783.45 and 5,181.83 is: 7,151.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,538.17 : 11,783.45 = 5,181.83 : x
  2. Step 2: Convert to fraction form
    8,538.17/11,783.45 = 5,181.83/x
  3. Step 3: Cross multiply
    8,538.17x = 11,783.45 × 5,181.83
  4. Step 4: Simplify right side
    8,538.17x = 61,059,838.26
  5. Step 5: Solve for x
    x = 61,059,838.26/8,538.17
  6. Step 6: Final answer
    x = 7,151.40

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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.