Home / 15,020.15-20,727.59-8,305.63

Finding the Fourth Proportional to 15,020.15, 20,727.59 and 8,305.63

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Solution

The fourth proportional to 15,020.15, 20,727.59 and 8,305.63 is: 11,461.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,020.15 : 20,727.59 = 8,305.63 : x
  2. Step 2: Convert to fraction form
    15,020.15/20,727.59 = 8,305.63/x
  3. Step 3: Cross multiply
    15,020.15x = 20,727.59 × 8,305.63
  4. Step 4: Simplify right side
    15,020.15x = 172,155,693.33
  5. Step 5: Solve for x
    x = 172,155,693.33/15,020.15
  6. Step 6: Final answer
    x = 11,461.65

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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.