Home / 13,048.10-18,006.45-7,079.78

Finding the Fourth Proportional to 13,048.10, 18,006.45 and 7,079.78

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Solution

The fourth proportional to 13,048.10, 18,006.45 and 7,079.78 is: 9,770.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,048.10 : 18,006.45 = 7,079.78 : x
  2. Step 2: Convert to fraction form
    13,048.10/18,006.45 = 7,079.78/x
  3. Step 3: Cross multiply
    13,048.10x = 18,006.45 × 7,079.78
  4. Step 4: Simplify right side
    13,048.10x = 127,481,704.58
  5. Step 5: Solve for x
    x = 127,481,704.58/13,048.10
  6. Step 6: Final answer
    x = 9,770.14

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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.