Home / 18,341.12-27,508.16-5,190.32

Finding the Fourth Proportional to 18,341.12, 27,508.16 and 5,190.32

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Solution

The fourth proportional to 18,341.12, 27,508.16 and 5,190.32 is: 7,784.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,341.12 : 27,508.16 = 5,190.32 : x
  2. Step 2: Convert to fraction form
    18,341.12/27,508.16 = 5,190.32/x
  3. Step 3: Cross multiply
    18,341.12x = 27,508.16 × 5,190.32
  4. Step 4: Simplify right side
    18,341.12x = 142,776,153.01
  5. Step 5: Solve for x
    x = 142,776,153.01/18,341.12
  6. Step 6: Final answer
    x = 7,784.48

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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.