Home / 8,942.63-12,336.57-6,291.50

Finding the Fourth Proportional to 8,942.63, 12,336.57 and 6,291.50

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Solution

The fourth proportional to 8,942.63, 12,336.57 and 6,291.50 is: 8,679.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,942.63 : 12,336.57 = 6,291.50 : x
  2. Step 2: Convert to fraction form
    8,942.63/12,336.57 = 6,291.50/x
  3. Step 3: Cross multiply
    8,942.63x = 12,336.57 × 6,291.50
  4. Step 4: Simplify right side
    8,942.63x = 77,615,468.47
  5. Step 5: Solve for x
    x = 77,615,468.47/8,942.63
  6. Step 6: Final answer
    x = 8,679.27

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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.