Home / 16,977.90-23,428.39-9,423.86

Finding the Fourth Proportional to 16,977.90, 23,428.39 and 9,423.86

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Solution

The fourth proportional to 16,977.90, 23,428.39 and 9,423.86 is: 13,004.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,977.90 : 23,428.39 = 9,423.86 : x
  2. Step 2: Convert to fraction form
    16,977.90/23,428.39 = 9,423.86/x
  3. Step 3: Cross multiply
    16,977.90x = 23,428.39 × 9,423.86
  4. Step 4: Simplify right side
    16,977.90x = 220,785,820.27
  5. Step 5: Solve for x
    x = 220,785,820.27/16,977.90
  6. Step 6: Final answer
    x = 13,004.31

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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.