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Finding the Fourth Proportional to 13,048.74, 18,007.11 and 7,383.87

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Solution

The fourth proportional to 13,048.74, 18,007.11 and 7,383.87 is: 10,189.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,048.74 : 18,007.11 = 7,383.87 : x
  2. Step 2: Convert to fraction form
    13,048.74/18,007.11 = 7,383.87/x
  3. Step 3: Cross multiply
    13,048.74x = 18,007.11 × 7,383.87
  4. Step 4: Simplify right side
    13,048.74x = 132,962,159.32
  5. Step 5: Solve for x
    x = 132,962,159.32/13,048.74
  6. Step 6: Final answer
    x = 10,189.66

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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.