Home / 13,537.36-18,681.80-7,568.39

Finding the Fourth Proportional to 13,537.36, 18,681.80 and 7,568.39

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Solution

The fourth proportional to 13,537.36, 18,681.80 and 7,568.39 is: 10,444.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,537.36 : 18,681.80 = 7,568.39 : x
  2. Step 2: Convert to fraction form
    13,537.36/18,681.80 = 7,568.39/x
  3. Step 3: Cross multiply
    13,537.36x = 18,681.80 × 7,568.39
  4. Step 4: Simplify right side
    13,537.36x = 141,391,148.30
  5. Step 5: Solve for x
    x = 141,391,148.30/13,537.36
  6. Step 6: Final answer
    x = 10,444.51

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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.