Home / 14,785.96-20,403.66-8,237.20

Finding the Fourth Proportional to 14,785.96, 20,403.66 and 8,237.20

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Solution

The fourth proportional to 14,785.96, 20,403.66 and 8,237.20 is: 11,366.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,785.96 : 20,403.66 = 8,237.20 : x
  2. Step 2: Convert to fraction form
    14,785.96/20,403.66 = 8,237.20/x
  3. Step 3: Cross multiply
    14,785.96x = 20,403.66 × 8,237.20
  4. Step 4: Simplify right side
    14,785.96x = 168,069,028.15
  5. Step 5: Solve for x
    x = 168,069,028.15/14,785.96
  6. Step 6: Final answer
    x = 11,366.80

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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.