Home / 16,905.40-23,329.25-9,351.14

Finding the Fourth Proportional to 16,905.40, 23,329.25 and 9,351.14

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Solution

The fourth proportional to 16,905.40, 23,329.25 and 9,351.14 is: 12,904.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,905.40 : 23,329.25 = 9,351.14 : x
  2. Step 2: Convert to fraction form
    16,905.40/23,329.25 = 9,351.14/x
  3. Step 3: Cross multiply
    16,905.40x = 23,329.25 × 9,351.14
  4. Step 4: Simplify right side
    16,905.40x = 218,154,954.51
  5. Step 5: Solve for x
    x = 218,154,954.51/16,905.40
  6. Step 6: Final answer
    x = 12,904.46

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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.