Home / 15,072.16-20,794.56-8,698.56

Finding the Fourth Proportional to 15,072.16, 20,794.56 and 8,698.56

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Solution

The fourth proportional to 15,072.16, 20,794.56 and 8,698.56 is: 12,001.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,072.16 : 20,794.56 = 8,698.56 : x
  2. Step 2: Convert to fraction form
    15,072.16/20,794.56 = 8,698.56/x
  3. Step 3: Cross multiply
    15,072.16x = 20,794.56 × 8,698.56
  4. Step 4: Simplify right side
    15,072.16x = 180,882,727.83
  5. Step 5: Solve for x
    x = 180,882,727.83/15,072.16
  6. Step 6: Final answer
    x = 12,001.12

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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.