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Finding the Fourth Proportional to 17,369.32, 23,970.02 and 9,917.80

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Solution

The fourth proportional to 17,369.32, 23,970.02 and 9,917.80 is: 13,686.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,369.32 : 23,970.02 = 9,917.80 : x
  2. Step 2: Convert to fraction form
    17,369.32/23,970.02 = 9,917.80/x
  3. Step 3: Cross multiply
    17,369.32x = 23,970.02 × 9,917.80
  4. Step 4: Simplify right side
    17,369.32x = 237,729,864.36
  5. Step 5: Solve for x
    x = 237,729,864.36/17,369.32
  6. Step 6: Final answer
    x = 13,686.77

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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.