Home / 15,216.41-20,997.28-8,501.10

Finding the Fourth Proportional to 15,216.41, 20,997.28 and 8,501.10

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Solution

The fourth proportional to 15,216.41, 20,997.28 and 8,501.10 is: 11,730.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.41 : 20,997.28 = 8,501.10 : x
  2. Step 2: Convert to fraction form
    15,216.41/20,997.28 = 8,501.10/x
  3. Step 3: Cross multiply
    15,216.41x = 20,997.28 × 8,501.10
  4. Step 4: Simplify right side
    15,216.41x = 178,499,979.19
  5. Step 5: Solve for x
    x = 178,499,979.19/15,216.41
  6. Step 6: Final answer
    x = 11,730.76

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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.