Home / 18,667.08-25,750.72-11,108.02

Finding the Fourth Proportional to 18,667.08, 25,750.72 and 11,108.02

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Solution

The fourth proportional to 18,667.08, 25,750.72 and 11,108.02 is: 15,323.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,667.08 : 25,750.72 = 11,108.02 : x
  2. Step 2: Convert to fraction form
    18,667.08/25,750.72 = 11,108.02/x
  3. Step 3: Cross multiply
    18,667.08x = 25,750.72 × 11,108.02
  4. Step 4: Simplify right side
    18,667.08x = 286,039,512.77
  5. Step 5: Solve for x
    x = 286,039,512.77/18,667.08
  6. Step 6: Final answer
    x = 15,323.21

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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.