Home / 15,043.07-20,761.77-8,582.72

Finding the Fourth Proportional to 15,043.07, 20,761.77 and 8,582.72

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Solution

The fourth proportional to 15,043.07, 20,761.77 and 8,582.72 is: 11,845.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,043.07 : 20,761.77 = 8,582.72 : x
  2. Step 2: Convert to fraction form
    15,043.07/20,761.77 = 8,582.72/x
  3. Step 3: Cross multiply
    15,043.07x = 20,761.77 × 8,582.72
  4. Step 4: Simplify right side
    15,043.07x = 178,192,354.81
  5. Step 5: Solve for x
    x = 178,192,354.81/15,043.07
  6. Step 6: Final answer
    x = 11,845.48

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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.