Home / 13,536.81-18,680.91-7,568.79

Finding the Fourth Proportional to 13,536.81, 18,680.91 and 7,568.79

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Solution

The fourth proportional to 13,536.81, 18,680.91 and 7,568.79 is: 10,444.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,536.81 : 18,680.91 = 7,568.79 : x
  2. Step 2: Convert to fraction form
    13,536.81/18,680.91 = 7,568.79/x
  3. Step 3: Cross multiply
    13,536.81x = 18,680.91 × 7,568.79
  4. Step 4: Simplify right side
    13,536.81x = 141,391,884.80
  5. Step 5: Solve for x
    x = 141,391,884.80/13,536.81
  6. Step 6: Final answer
    x = 10,444.99

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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.