Home / 11,389.22-15,717.48-6,353.18

Finding the Fourth Proportional to 11,389.22, 15,717.48 and 6,353.18

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Solution

The fourth proportional to 11,389.22, 15,717.48 and 6,353.18 is: 8,767.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.22 : 15,717.48 = 6,353.18 : x
  2. Step 2: Convert to fraction form
    11,389.22/15,717.48 = 6,353.18/x
  3. Step 3: Cross multiply
    11,389.22x = 15,717.48 × 6,353.18
  4. Step 4: Simplify right side
    11,389.22x = 99,855,979.59
  5. Step 5: Solve for x
    x = 99,855,979.59/11,389.22
  6. Step 6: Final answer
    x = 8,767.59

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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.