Home / 18,347.08-25,319.10-9,963.58

Finding the Fourth Proportional to 18,347.08, 25,319.10 and 9,963.58

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Solution

The fourth proportional to 18,347.08, 25,319.10 and 9,963.58 is: 13,749.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,347.08 : 25,319.10 = 9,963.58 : x
  2. Step 2: Convert to fraction form
    18,347.08/25,319.10 = 9,963.58/x
  3. Step 3: Cross multiply
    18,347.08x = 25,319.10 × 9,963.58
  4. Step 4: Simplify right side
    18,347.08x = 252,268,878.38
  5. Step 5: Solve for x
    x = 252,268,878.38/18,347.08
  6. Step 6: Final answer
    x = 13,749.81

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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.