Home / 16,912.36-23,343.75-9,840.15

Finding the Fourth Proportional to 16,912.36, 23,343.75 and 9,840.15

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Solution

The fourth proportional to 16,912.36, 23,343.75 and 9,840.15 is: 13,582.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,912.36 : 23,343.75 = 9,840.15 : x
  2. Step 2: Convert to fraction form
    16,912.36/23,343.75 = 9,840.15/x
  3. Step 3: Cross multiply
    16,912.36x = 23,343.75 × 9,840.15
  4. Step 4: Simplify right side
    16,912.36x = 229,706,001.56
  5. Step 5: Solve for x
    x = 229,706,001.56/16,912.36
  6. Step 6: Final answer
    x = 13,582.14

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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.