Home / 14,305.20-19,742.52-8,336.40

Finding the Fourth Proportional to 14,305.20, 19,742.52 and 8,336.40

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Solution

The fourth proportional to 14,305.20, 19,742.52 and 8,336.40 is: 11,505.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,305.20 : 19,742.52 = 8,336.40 : x
  2. Step 2: Convert to fraction form
    14,305.20/19,742.52 = 8,336.40/x
  3. Step 3: Cross multiply
    14,305.20x = 19,742.52 × 8,336.40
  4. Step 4: Simplify right side
    14,305.20x = 164,581,543.73
  5. Step 5: Solve for x
    x = 164,581,543.73/14,305.20
  6. Step 6: Final answer
    x = 11,505.02

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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.