Home / 10,929.02-15,081.66-6,149.05

Finding the Fourth Proportional to 10,929.02, 15,081.66 and 6,149.05

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Solution

The fourth proportional to 10,929.02, 15,081.66 and 6,149.05 is: 8,485.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,929.02 : 15,081.66 = 6,149.05 : x
  2. Step 2: Convert to fraction form
    10,929.02/15,081.66 = 6,149.05/x
  3. Step 3: Cross multiply
    10,929.02x = 15,081.66 × 6,149.05
  4. Step 4: Simplify right side
    10,929.02x = 92,737,843.72
  5. Step 5: Solve for x
    x = 92,737,843.72/10,929.02
  6. Step 6: Final answer
    x = 8,485.47

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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.