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Finding the Fourth Proportional to 15,812.01, 23,685.21 and 9,218.21

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Solution

The fourth proportional to 15,812.01, 23,685.21 and 9,218.21 is: 13,808.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,812.01 : 23,685.21 = 9,218.21 : x
  2. Step 2: Convert to fraction form
    15,812.01/23,685.21 = 9,218.21/x
  3. Step 3: Cross multiply
    15,812.01x = 23,685.21 × 9,218.21
  4. Step 4: Simplify right side
    15,812.01x = 218,335,121.25
  5. Step 5: Solve for x
    x = 218,335,121.25/15,812.01
  6. Step 6: Final answer
    x = 13,808.18

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.