Home / 16,905.42-23,328.61-9,351.36

Finding the Fourth Proportional to 16,905.42, 23,328.61 and 9,351.36

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Solution

The fourth proportional to 16,905.42, 23,328.61 and 9,351.36 is: 12,904.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.42 : 23,328.61 = 9,351.36 : x
  2. Step 2: Convert to fraction form
    16,905.42/23,328.61 = 9,351.36/x
  3. Step 3: Cross multiply
    16,905.42x = 23,328.61 × 9,351.36
  4. Step 4: Simplify right side
    16,905.42x = 218,154,207.03
  5. Step 5: Solve for x
    x = 218,154,207.03/16,905.42
  6. Step 6: Final answer
    x = 12,904.39

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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.