Home / 8,929.12-12,315.25-5,939.77

Finding the Fourth Proportional to 8,929.12, 12,315.25 and 5,939.77

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Solution

The fourth proportional to 8,929.12, 12,315.25 and 5,939.77 is: 8,192.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,929.12 : 12,315.25 = 5,939.77 : x
  2. Step 2: Convert to fraction form
    8,929.12/12,315.25 = 5,939.77/x
  3. Step 3: Cross multiply
    8,929.12x = 12,315.25 × 5,939.77
  4. Step 4: Simplify right side
    8,929.12x = 73,149,752.49
  5. Step 5: Solve for x
    x = 73,149,752.49/8,929.12
  6. Step 6: Final answer
    x = 8,192.27

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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.