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Finding the Fourth Proportional to 12,657.48, 18,986.52 and 4,337.48

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Solution

The fourth proportional to 12,657.48, 18,986.52 and 4,337.48 is: 6,506.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,657.48 : 18,986.52 = 4,337.48 : x
  2. Step 2: Convert to fraction form
    12,657.48/18,986.52 = 4,337.48/x
  3. Step 3: Cross multiply
    12,657.48x = 18,986.52 × 4,337.48
  4. Step 4: Simplify right side
    12,657.48x = 82,353,650.77
  5. Step 5: Solve for x
    x = 82,353,650.77/12,657.48
  6. Step 6: Final answer
    x = 6,506.32

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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.