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Finding the Fourth Proportional to 8,328.52, 12,492.80 and 2,856.52

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Solution

The fourth proportional to 8,328.52, 12,492.80 and 2,856.52 is: 4,284.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,328.52 : 12,492.80 = 2,856.52 : x
  2. Step 2: Convert to fraction form
    8,328.52/12,492.80 = 2,856.52/x
  3. Step 3: Cross multiply
    8,328.52x = 12,492.80 × 2,856.52
  4. Step 4: Simplify right side
    8,328.52x = 35,685,933.06
  5. Step 5: Solve for x
    x = 35,685,933.06/8,328.52
  6. Step 6: Final answer
    x = 4,284.79

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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.