Home / 15,107.07-20,846.71-8,728.66

Finding the Fourth Proportional to 15,107.07, 20,846.71 and 8,728.66

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Solution

The fourth proportional to 15,107.07, 20,846.71 and 8,728.66 is: 12,044.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,107.07 : 20,846.71 = 8,728.66 : x
  2. Step 2: Convert to fraction form
    15,107.07/20,846.71 = 8,728.66/x
  3. Step 3: Cross multiply
    15,107.07x = 20,846.71 × 8,728.66
  4. Step 4: Simplify right side
    15,107.07x = 181,963,856.13
  5. Step 5: Solve for x
    x = 181,963,856.13/15,107.07
  6. Step 6: Final answer
    x = 12,044.94

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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.