Home / 15,018.10-20,724.62-8,303.56

Finding the Fourth Proportional to 15,018.10, 20,724.62 and 8,303.56

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Solution

The fourth proportional to 15,018.10, 20,724.62 and 8,303.56 is: 11,458.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,018.10 : 20,724.62 = 8,303.56 : x
  2. Step 2: Convert to fraction form
    15,018.10/20,724.62 = 8,303.56/x
  3. Step 3: Cross multiply
    15,018.10x = 20,724.62 × 8,303.56
  4. Step 4: Simplify right side
    15,018.10x = 172,088,032.32
  5. Step 5: Solve for x
    x = 172,088,032.32/15,018.10
  6. Step 6: Final answer
    x = 11,458.71

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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.