Home / 18,458.08-25,463.28-12,081.86

Finding the Fourth Proportional to 18,458.08, 25,463.28 and 12,081.86

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Solution

The fourth proportional to 18,458.08, 25,463.28 and 12,081.86 is: 16,667.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,458.08 : 25,463.28 = 12,081.86 : x
  2. Step 2: Convert to fraction form
    18,458.08/25,463.28 = 12,081.86/x
  3. Step 3: Cross multiply
    18,458.08x = 25,463.28 × 12,081.86
  4. Step 4: Simplify right side
    18,458.08x = 307,643,784.10
  5. Step 5: Solve for x
    x = 307,643,784.10/18,458.08
  6. Step 6: Final answer
    x = 16,667.16

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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.