Home / 11,931.76-16,465.28-6,626.92

Finding the Fourth Proportional to 11,931.76, 16,465.28 and 6,626.92

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Solution

The fourth proportional to 11,931.76, 16,465.28 and 6,626.92 is: 9,144.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.76 : 16,465.28 = 6,626.92 : x
  2. Step 2: Convert to fraction form
    11,931.76/16,465.28 = 6,626.92/x
  3. Step 3: Cross multiply
    11,931.76x = 16,465.28 × 6,626.92
  4. Step 4: Simplify right side
    11,931.76x = 109,114,152.14
  5. Step 5: Solve for x
    x = 109,114,152.14/11,931.76
  6. Step 6: Final answer
    x = 9,144.85

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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.