Home / 11,931.31-16,466.66-6,626.71

Finding the Fourth Proportional to 11,931.31, 16,466.66 and 6,626.71

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Solution

The fourth proportional to 11,931.31, 16,466.66 and 6,626.71 is: 9,145.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.31 : 16,466.66 = 6,626.71 : x
  2. Step 2: Convert to fraction form
    11,931.31/16,466.66 = 6,626.71/x
  3. Step 3: Cross multiply
    11,931.31x = 16,466.66 × 6,626.71
  4. Step 4: Simplify right side
    11,931.31x = 109,119,780.49
  5. Step 5: Solve for x
    x = 109,119,780.49/11,931.31
  6. Step 6: Final answer
    x = 9,145.67

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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.