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Finding the Fourth Proportional to 15,093.50, 20,829.06 and 8,806.28

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Solution

The fourth proportional to 15,093.50, 20,829.06 and 8,806.28 is: 12,152.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,093.50 : 20,829.06 = 8,806.28 : x
  2. Step 2: Convert to fraction form
    15,093.50/20,829.06 = 8,806.28/x
  3. Step 3: Cross multiply
    15,093.50x = 20,829.06 × 8,806.28
  4. Step 4: Simplify right side
    15,093.50x = 183,426,534.50
  5. Step 5: Solve for x
    x = 183,426,534.50/15,093.50
  6. Step 6: Final answer
    x = 12,152.68

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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.