Home / 13,518.07-18,654.73-7,549.82

Finding the Fourth Proportional to 13,518.07, 18,654.73 and 7,549.82

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Solution

The fourth proportional to 13,518.07, 18,654.73 and 7,549.82 is: 10,418.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.07 : 18,654.73 = 7,549.82 : x
  2. Step 2: Convert to fraction form
    13,518.07/18,654.73 = 7,549.82/x
  3. Step 3: Cross multiply
    13,518.07x = 18,654.73 × 7,549.82
  4. Step 4: Simplify right side
    13,518.07x = 140,839,853.65
  5. Step 5: Solve for x
    x = 140,839,853.65/13,518.07
  6. Step 6: Final answer
    x = 10,418.64

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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.