Home / 12,237.42-16,871.28-9,727.86

Finding the Fourth Proportional to 12,237.42, 16,871.28 and 9,727.86

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Solution

The fourth proportional to 12,237.42, 16,871.28 and 9,727.86 is: 13,411.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,237.42 : 16,871.28 = 9,727.86 : x
  2. Step 2: Convert to fraction form
    12,237.42/16,871.28 = 9,727.86/x
  3. Step 3: Cross multiply
    12,237.42x = 16,871.28 × 9,727.86
  4. Step 4: Simplify right side
    12,237.42x = 164,121,449.86
  5. Step 5: Solve for x
    x = 164,121,449.86/12,237.42
  6. Step 6: Final answer
    x = 13,411.44

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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.