Home / 11,389.13-15,717.03-6,353.23

Finding the Fourth Proportional to 11,389.13, 15,717.03 and 6,353.23

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Solution

The fourth proportional to 11,389.13, 15,717.03 and 6,353.23 is: 8,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,389.13 : 15,717.03 = 6,353.23 : x
  2. Step 2: Convert to fraction form
    11,389.13/15,717.03 = 6,353.23/x
  3. Step 3: Cross multiply
    11,389.13x = 15,717.03 × 6,353.23
  4. Step 4: Simplify right side
    11,389.13x = 99,853,796.16
  5. Step 5: Solve for x
    x = 99,853,796.16/11,389.13
  6. Step 6: Final answer
    x = 8,767.46

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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.