Home / 13,219.66-18,246.19-8,495.74

Finding the Fourth Proportional to 13,219.66, 18,246.19 and 8,495.74

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Solution

The fourth proportional to 13,219.66, 18,246.19 and 8,495.74 is: 11,726.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.66 : 18,246.19 = 8,495.74 : x
  2. Step 2: Convert to fraction form
    13,219.66/18,246.19 = 8,495.74/x
  3. Step 3: Cross multiply
    13,219.66x = 18,246.19 × 8,495.74
  4. Step 4: Simplify right side
    13,219.66x = 155,014,777.20
  5. Step 5: Solve for x
    x = 155,014,777.20/13,219.66
  6. Step 6: Final answer
    x = 11,726.08

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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.