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Finding the Fourth Proportional to 13,062.40, 18,027.22 and 7,398.13

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Solution

The fourth proportional to 13,062.40, 18,027.22 and 7,398.13 is: 10,210.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,062.40 : 18,027.22 = 7,398.13 : x
  2. Step 2: Convert to fraction form
    13,062.40/18,027.22 = 7,398.13/x
  3. Step 3: Cross multiply
    13,062.40x = 18,027.22 × 7,398.13
  4. Step 4: Simplify right side
    13,062.40x = 133,367,717.10
  5. Step 5: Solve for x
    x = 133,367,717.10/13,062.40
  6. Step 6: Final answer
    x = 10,210.05

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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.