Home / 11,931.89-16,465.91-6,626.70

Finding the Fourth Proportional to 11,931.89, 16,465.91 and 6,626.70

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Solution

The fourth proportional to 11,931.89, 16,465.91 and 6,626.70 is: 9,144.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.89 : 16,465.91 = 6,626.70 : x
  2. Step 2: Convert to fraction form
    11,931.89/16,465.91 = 6,626.70/x
  3. Step 3: Cross multiply
    11,931.89x = 16,465.91 × 6,626.70
  4. Step 4: Simplify right side
    11,931.89x = 109,114,612.66
  5. Step 5: Solve for x
    x = 109,114,612.66/11,931.89
  6. Step 6: Final answer
    x = 9,144.79

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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.