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Finding the Fourth Proportional to 15,624.99, 21,561.93 and 9,336.15

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Solution

The fourth proportional to 15,624.99, 21,561.93 and 9,336.15 is: 12,883.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,624.99 : 21,561.93 = 9,336.15 : x
  2. Step 2: Convert to fraction form
    15,624.99/21,561.93 = 9,336.15/x
  3. Step 3: Cross multiply
    15,624.99x = 21,561.93 × 9,336.15
  4. Step 4: Simplify right side
    15,624.99x = 201,305,412.77
  5. Step 5: Solve for x
    x = 201,305,412.77/15,624.99
  6. Step 6: Final answer
    x = 12,883.55

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.