Home / 11,941.92-16,480.08-6,637.20

Finding the Fourth Proportional to 11,941.92, 16,480.08 and 6,637.20

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Solution

The fourth proportional to 11,941.92, 16,480.08 and 6,637.20 is: 9,159.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,941.92 : 16,480.08 = 6,637.20 : x
  2. Step 2: Convert to fraction form
    11,941.92/16,480.08 = 6,637.20/x
  3. Step 3: Cross multiply
    11,941.92x = 16,480.08 × 6,637.20
  4. Step 4: Simplify right side
    11,941.92x = 109,381,586.98
  5. Step 5: Solve for x
    x = 109,381,586.98/11,941.92
  6. Step 6: Final answer
    x = 9,159.46

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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.