Home / 15,167.39-20,933.75-8,798.06

Finding the Fourth Proportional to 15,167.39, 20,933.75 and 8,798.06

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Solution

The fourth proportional to 15,167.39, 20,933.75 and 8,798.06 is: 12,142.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,167.39 : 20,933.75 = 8,798.06 : x
  2. Step 2: Convert to fraction form
    15,167.39/20,933.75 = 8,798.06/x
  3. Step 3: Cross multiply
    15,167.39x = 20,933.75 × 8,798.06
  4. Step 4: Simplify right side
    15,167.39x = 184,176,239.87
  5. Step 5: Solve for x
    x = 184,176,239.87/15,167.39
  6. Step 6: Final answer
    x = 12,142.91

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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.