Home / 11,426.15-15,767.00-6,389.67

Finding the Fourth Proportional to 11,426.15, 15,767.00 and 6,389.67

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Solution

The fourth proportional to 11,426.15, 15,767.00 and 6,389.67 is: 8,817.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,426.15 : 15,767.00 = 6,389.67 : x
  2. Step 2: Convert to fraction form
    11,426.15/15,767.00 = 6,389.67/x
  3. Step 3: Cross multiply
    11,426.15x = 15,767.00 × 6,389.67
  4. Step 4: Simplify right side
    11,426.15x = 100,745,894.94
  5. Step 5: Solve for x
    x = 100,745,894.94/11,426.15
  6. Step 6: Final answer
    x = 8,817.14

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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.