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Finding the Fourth Proportional to 13,035.74, 18,001.04 and 8,328.22

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Solution

The fourth proportional to 13,035.74, 18,001.04 and 8,328.22 is: 11,500.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,035.74 : 18,001.04 = 8,328.22 : x
  2. Step 2: Convert to fraction form
    13,035.74/18,001.04 = 8,328.22/x
  3. Step 3: Cross multiply
    13,035.74x = 18,001.04 × 8,328.22
  4. Step 4: Simplify right side
    13,035.74x = 149,916,534.71
  5. Step 5: Solve for x
    x = 149,916,534.71/13,035.74
  6. Step 6: Final answer
    x = 11,500.43

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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.