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Finding the Fourth Proportional to 15,263.60, 21,063.19 and 8,548.89

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Solution

The fourth proportional to 15,263.60, 21,063.19 and 8,548.89 is: 11,797.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,263.60 : 21,063.19 = 8,548.89 : x
  2. Step 2: Convert to fraction form
    15,263.60/21,063.19 = 8,548.89/x
  3. Step 3: Cross multiply
    15,263.60x = 21,063.19 × 8,548.89
  4. Step 4: Simplify right side
    15,263.60x = 180,066,872.99
  5. Step 5: Solve for x
    x = 180,066,872.99/15,263.60
  6. Step 6: Final answer
    x = 11,797.15

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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.