Home / 9,181.13-12,669.96-5,455.13

Finding the Fourth Proportional to 9,181.13, 12,669.96 and 5,455.13

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Solution

The fourth proportional to 9,181.13, 12,669.96 and 5,455.13 is: 7,528.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,181.13 : 12,669.96 = 5,455.13 : x
  2. Step 2: Convert to fraction form
    9,181.13/12,669.96 = 5,455.13/x
  3. Step 3: Cross multiply
    9,181.13x = 12,669.96 × 5,455.13
  4. Step 4: Simplify right side
    9,181.13x = 69,116,215.55
  5. Step 5: Solve for x
    x = 69,116,215.55/9,181.13
  6. Step 6: Final answer
    x = 7,528.08

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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.