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Finding the Fourth Proportional to 13,302.50, 19,953.78 and 5,511.50

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Solution

The fourth proportional to 13,302.50, 19,953.78 and 5,511.50 is: 8,267.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,302.50 : 19,953.78 = 5,511.50 : x
  2. Step 2: Convert to fraction form
    13,302.50/19,953.78 = 5,511.50/x
  3. Step 3: Cross multiply
    13,302.50x = 19,953.78 × 5,511.50
  4. Step 4: Simplify right side
    13,302.50x = 109,975,258.47
  5. Step 5: Solve for x
    x = 109,975,258.47/13,302.50
  6. Step 6: Final answer
    x = 8,267.26

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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.