Home / 15,282.75-21,089.86-8,568.93

Finding the Fourth Proportional to 15,282.75, 21,089.86 and 8,568.93

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Solution

The fourth proportional to 15,282.75, 21,089.86 and 8,568.93 is: 11,824.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,282.75 : 21,089.86 = 8,568.93 : x
  2. Step 2: Convert to fraction form
    15,282.75/21,089.86 = 8,568.93/x
  3. Step 3: Cross multiply
    15,282.75x = 21,089.86 × 8,568.93
  4. Step 4: Simplify right side
    15,282.75x = 180,717,534.05
  5. Step 5: Solve for x
    x = 180,717,534.05/15,282.75
  6. Step 6: Final answer
    x = 11,824.94

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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.