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Finding the Fourth Proportional to 8,492.39, 12,735.77 and 4,047.57

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Solution

The fourth proportional to 8,492.39, 12,735.77 and 4,047.57 is: 6,070.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,492.39 : 12,735.77 = 4,047.57 : x
  2. Step 2: Convert to fraction form
    8,492.39/12,735.77 = 4,047.57/x
  3. Step 3: Cross multiply
    8,492.39x = 12,735.77 × 4,047.57
  4. Step 4: Simplify right side
    8,492.39x = 51,548,970.52
  5. Step 5: Solve for x
    x = 51,548,970.52/8,492.39
  6. Step 6: Final answer
    x = 6,070.02

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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.