Home / 13,112.17-18,102.13-10,040.20

Finding the Fourth Proportional to 13,112.17, 18,102.13 and 10,040.20

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Solution

The fourth proportional to 13,112.17, 18,102.13 and 10,040.20 is: 13,861.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,112.17 : 18,102.13 = 10,040.20 : x
  2. Step 2: Convert to fraction form
    13,112.17/18,102.13 = 10,040.20/x
  3. Step 3: Cross multiply
    13,112.17x = 18,102.13 × 10,040.20
  4. Step 4: Simplify right side
    13,112.17x = 181,748,935.27
  5. Step 5: Solve for x
    x = 181,748,935.27/13,112.17
  6. Step 6: Final answer
    x = 13,861.09

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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.