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Finding the Fourth Proportional to 11,302.40, 16,945.04 and 8,842.40

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Solution

The fourth proportional to 11,302.40, 16,945.04 and 8,842.40 is: 13,256.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,302.40 : 16,945.04 = 8,842.40 : x
  2. Step 2: Convert to fraction form
    11,302.40/16,945.04 = 8,842.40/x
  3. Step 3: Cross multiply
    11,302.40x = 16,945.04 × 8,842.40
  4. Step 4: Simplify right side
    11,302.40x = 149,834,821.70
  5. Step 5: Solve for x
    x = 149,834,821.70/11,302.40
  6. Step 6: Final answer
    x = 13,256.90

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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.