Home / 15,216.98-20,998.23-8,410.71

Finding the Fourth Proportional to 15,216.98, 20,998.23 and 8,410.71

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Solution

The fourth proportional to 15,216.98, 20,998.23 and 8,410.71 is: 11,606.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,216.98 : 20,998.23 = 8,410.71 : x
  2. Step 2: Convert to fraction form
    15,216.98/20,998.23 = 8,410.71/x
  3. Step 3: Cross multiply
    15,216.98x = 20,998.23 × 8,410.71
  4. Step 4: Simplify right side
    15,216.98x = 176,610,023.04
  5. Step 5: Solve for x
    x = 176,610,023.04/15,216.98
  6. Step 6: Final answer
    x = 11,606.12

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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.