Home / 10,894.35-15,033.78-6,178.80

Finding the Fourth Proportional to 10,894.35, 15,033.78 and 6,178.80

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Solution

The fourth proportional to 10,894.35, 15,033.78 and 6,178.80 is: 8,526.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,894.35 : 15,033.78 = 6,178.80 : x
  2. Step 2: Convert to fraction form
    10,894.35/15,033.78 = 6,178.80/x
  3. Step 3: Cross multiply
    10,894.35x = 15,033.78 × 6,178.80
  4. Step 4: Simplify right side
    10,894.35x = 92,890,719.86
  5. Step 5: Solve for x
    x = 92,890,719.86/10,894.35
  6. Step 6: Final answer
    x = 8,526.50

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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.