Home / 12,529.86-18,774.80-9,182.60

Finding the Fourth Proportional to 12,529.86, 18,774.80 and 9,182.60

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Solution

The fourth proportional to 12,529.86, 18,774.80 and 9,182.60 is: 13,759.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,529.86 : 18,774.80 = 9,182.60 : x
  2. Step 2: Convert to fraction form
    12,529.86/18,774.80 = 9,182.60/x
  3. Step 3: Cross multiply
    12,529.86x = 18,774.80 × 9,182.60
  4. Step 4: Simplify right side
    12,529.86x = 172,401,478.48
  5. Step 5: Solve for x
    x = 172,401,478.48/12,529.86
  6. Step 6: Final answer
    x = 13,759.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.