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Finding the Fourth Proportional to 13,293.92, 18,336.18 and 8,751.12

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Solution

The fourth proportional to 13,293.92, 18,336.18 and 8,751.12 is: 12,070.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,293.92 : 18,336.18 = 8,751.12 : x
  2. Step 2: Convert to fraction form
    13,293.92/18,336.18 = 8,751.12/x
  3. Step 3: Cross multiply
    13,293.92x = 18,336.18 × 8,751.12
  4. Step 4: Simplify right side
    13,293.92x = 160,462,111.52
  5. Step 5: Solve for x
    x = 160,462,111.52/13,293.92
  6. Step 6: Final answer
    x = 12,070.34

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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.