Home / 16,905.51-23,328.14-9,351.72

Finding the Fourth Proportional to 16,905.51, 23,328.14 and 9,351.72

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Solution

The fourth proportional to 16,905.51, 23,328.14 and 9,351.72 is: 12,904.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.51 : 23,328.14 = 9,351.72 : x
  2. Step 2: Convert to fraction form
    16,905.51/23,328.14 = 9,351.72/x
  3. Step 3: Cross multiply
    16,905.51x = 23,328.14 × 9,351.72
  4. Step 4: Simplify right side
    16,905.51x = 218,158,186.64
  5. Step 5: Solve for x
    x = 218,158,186.64/16,905.51
  6. Step 6: Final answer
    x = 12,904.56

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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.