Home / 16,918.70-23,347.85-9,365.55

Finding the Fourth Proportional to 16,918.70, 23,347.85 and 9,365.55

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Solution

The fourth proportional to 16,918.70, 23,347.85 and 9,365.55 is: 12,924.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,918.70 : 23,347.85 = 9,365.55 : x
  2. Step 2: Convert to fraction form
    16,918.70/23,347.85 = 9,365.55/x
  3. Step 3: Cross multiply
    16,918.70x = 23,347.85 × 9,365.55
  4. Step 4: Simplify right side
    16,918.70x = 218,665,433.15
  5. Step 5: Solve for x
    x = 218,665,433.15/16,918.70
  6. Step 6: Final answer
    x = 12,924.48

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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.