Home / 11,163.16-15,389.76-10,818.10

Finding the Fourth Proportional to 11,163.16, 15,389.76 and 10,818.10

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Solution

The fourth proportional to 11,163.16, 15,389.76 and 10,818.10 is: 14,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.16 : 15,389.76 = 10,818.10 : x
  2. Step 2: Convert to fraction form
    11,163.16/15,389.76 = 10,818.10/x
  3. Step 3: Cross multiply
    11,163.16x = 15,389.76 × 10,818.10
  4. Step 4: Simplify right side
    11,163.16x = 166,487,962.66
  5. Step 5: Solve for x
    x = 166,487,962.66/11,163.16
  6. Step 6: Final answer
    x = 14,914.05

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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.