Home / 13,537.12-18,681.12-7,568.80

Finding the Fourth Proportional to 13,537.12, 18,681.12 and 7,568.80

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Solution

The fourth proportional to 13,537.12, 18,681.12 and 7,568.80 is: 10,444.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.12 : 18,681.12 = 7,568.80 : x
  2. Step 2: Convert to fraction form
    13,537.12/18,681.12 = 7,568.80/x
  3. Step 3: Cross multiply
    13,537.12x = 18,681.12 × 7,568.80
  4. Step 4: Simplify right side
    13,537.12x = 141,393,661.06
  5. Step 5: Solve for x
    x = 141,393,661.06/13,537.12
  6. Step 6: Final answer
    x = 10,444.88

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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.