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Finding the Fourth Proportional to 12,536.46, 18,807.93 and 6,691.50

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Solution

The fourth proportional to 12,536.46, 18,807.93 and 6,691.50 is: 10,038.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,536.46 : 18,807.93 = 6,691.50 : x
  2. Step 2: Convert to fraction form
    12,536.46/18,807.93 = 6,691.50/x
  3. Step 3: Cross multiply
    12,536.46x = 18,807.93 × 6,691.50
  4. Step 4: Simplify right side
    12,536.46x = 125,853,263.60
  5. Step 5: Solve for x
    x = 125,853,263.60/12,536.46
  6. Step 6: Final answer
    x = 10,038.98

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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.