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Finding the Fourth Proportional to 15,607.52, 21,527.10 and 9,936.68

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Solution

The fourth proportional to 15,607.52, 21,527.10 and 9,936.68 is: 13,705.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,607.52 : 21,527.10 = 9,936.68 : x
  2. Step 2: Convert to fraction form
    15,607.52/21,527.10 = 9,936.68/x
  3. Step 3: Cross multiply
    15,607.52x = 21,527.10 × 9,936.68
  4. Step 4: Simplify right side
    15,607.52x = 213,907,904.03
  5. Step 5: Solve for x
    x = 213,907,904.03/15,607.52
  6. Step 6: Final answer
    x = 13,705.44

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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.