Home / 11,275.19-16,890.91-8,308.25

Finding the Fourth Proportional to 11,275.19, 16,890.91 and 8,308.25

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Solution

The fourth proportional to 11,275.19, 16,890.91 and 8,308.25 is: 12,446.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.19 : 16,890.91 = 8,308.25 : x
  2. Step 2: Convert to fraction form
    11,275.19/16,890.91 = 8,308.25/x
  3. Step 3: Cross multiply
    11,275.19x = 16,890.91 × 8,308.25
  4. Step 4: Simplify right side
    11,275.19x = 140,333,903.01
  5. Step 5: Solve for x
    x = 140,333,903.01/11,275.19
  6. Step 6: Final answer
    x = 12,446.26

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.