Home / 11,503.61-15,875.54-6,469.41

Finding the Fourth Proportional to 11,503.61, 15,875.54 and 6,469.41

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Solution

The fourth proportional to 11,503.61, 15,875.54 and 6,469.41 is: 8,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,503.61 : 15,875.54 = 6,469.41 : x
  2. Step 2: Convert to fraction form
    11,503.61/15,875.54 = 6,469.41/x
  3. Step 3: Cross multiply
    11,503.61x = 15,875.54 × 6,469.41
  4. Step 4: Simplify right side
    11,503.61x = 102,705,344.88
  5. Step 5: Solve for x
    x = 102,705,344.88/11,503.61
  6. Step 6: Final answer
    x = 8,928.10

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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.