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Finding the Fourth Proportional to 17,355.72, 23,953.14 and 9,905.16

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Solution

The fourth proportional to 17,355.72, 23,953.14 and 9,905.16 is: 13,670.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,355.72 : 23,953.14 = 9,905.16 : x
  2. Step 2: Convert to fraction form
    17,355.72/23,953.14 = 9,905.16/x
  3. Step 3: Cross multiply
    17,355.72x = 23,953.14 × 9,905.16
  4. Step 4: Simplify right side
    17,355.72x = 237,259,684.20
  5. Step 5: Solve for x
    x = 237,259,684.20/17,355.72
  6. Step 6: Final answer
    x = 13,670.40

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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.