Home / 15,178.33-20,945.54-8,805.05

Finding the Fourth Proportional to 15,178.33, 20,945.54 and 8,805.05

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Solution

The fourth proportional to 15,178.33, 20,945.54 and 8,805.05 is: 12,150.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.33 : 20,945.54 = 8,805.05 : x
  2. Step 2: Convert to fraction form
    15,178.33/20,945.54 = 8,805.05/x
  3. Step 3: Cross multiply
    15,178.33x = 20,945.54 × 8,805.05
  4. Step 4: Simplify right side
    15,178.33x = 184,426,444.26
  5. Step 5: Solve for x
    x = 184,426,444.26/15,178.33
  6. Step 6: Final answer
    x = 12,150.64

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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.