Home / 16,679.79-23,017.55-9,963.86

Finding the Fourth Proportional to 16,679.79, 23,017.55 and 9,963.86

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Solution

The fourth proportional to 16,679.79, 23,017.55 and 9,963.86 is: 13,749.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,679.79 : 23,017.55 = 9,963.86 : x
  2. Step 2: Convert to fraction form
    16,679.79/23,017.55 = 9,963.86/x
  3. Step 3: Cross multiply
    16,679.79x = 23,017.55 × 9,963.86
  4. Step 4: Simplify right side
    16,679.79x = 229,343,480.84
  5. Step 5: Solve for x
    x = 229,343,480.84/16,679.79
  6. Step 6: Final answer
    x = 13,749.78

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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.