Home / 15,834.44-21,851.51-8,760.86

Finding the Fourth Proportional to 15,834.44, 21,851.51 and 8,760.86

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Solution

The fourth proportional to 15,834.44, 21,851.51 and 8,760.86 is: 12,089.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,834.44 : 21,851.51 = 8,760.86 : x
  2. Step 2: Convert to fraction form
    15,834.44/21,851.51 = 8,760.86/x
  3. Step 3: Cross multiply
    15,834.44x = 21,851.51 × 8,760.86
  4. Step 4: Simplify right side
    15,834.44x = 191,437,866.84
  5. Step 5: Solve for x
    x = 191,437,866.84/15,834.44
  6. Step 6: Final answer
    x = 12,089.97

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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.