Home / 15,192.32-20,967.32-8,817.55

Finding the Fourth Proportional to 15,192.32, 20,967.32 and 8,817.55

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Solution

The fourth proportional to 15,192.32, 20,967.32 and 8,817.55 is: 12,169.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,192.32 : 20,967.32 = 8,817.55 : x
  2. Step 2: Convert to fraction form
    15,192.32/20,967.32 = 8,817.55/x
  3. Step 3: Cross multiply
    15,192.32x = 20,967.32 × 8,817.55
  4. Step 4: Simplify right side
    15,192.32x = 184,880,392.47
  5. Step 5: Solve for x
    x = 184,880,392.47/15,192.32
  6. Step 6: Final answer
    x = 12,169.33

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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.