Home / 11,348.43-15,661.01-6,312.72

Finding the Fourth Proportional to 11,348.43, 15,661.01 and 6,312.72

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Solution

The fourth proportional to 11,348.43, 15,661.01 and 6,312.72 is: 8,711.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,348.43 : 15,661.01 = 6,312.72 : x
  2. Step 2: Convert to fraction form
    11,348.43/15,661.01 = 6,312.72/x
  3. Step 3: Cross multiply
    11,348.43x = 15,661.01 × 6,312.72
  4. Step 4: Simplify right side
    11,348.43x = 98,863,571.05
  5. Step 5: Solve for x
    x = 98,863,571.05/11,348.43
  6. Step 6: Final answer
    x = 8,711.65

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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.