Home / 13,052.74-18,012.62-7,387.88

Finding the Fourth Proportional to 13,052.74, 18,012.62 and 7,387.88

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Solution

The fourth proportional to 13,052.74, 18,012.62 and 7,387.88 is: 10,195.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,052.74 : 18,012.62 = 7,387.88 : x
  2. Step 2: Convert to fraction form
    13,052.74/18,012.62 = 7,387.88/x
  3. Step 3: Cross multiply
    13,052.74x = 18,012.62 × 7,387.88
  4. Step 4: Simplify right side
    13,052.74x = 133,075,075.05
  5. Step 5: Solve for x
    x = 133,075,075.05/13,052.74
  6. Step 6: Final answer
    x = 10,195.18

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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.