Home / 16,890.15-23,308.29-9,438.15

Finding the Fourth Proportional to 16,890.15, 23,308.29 and 9,438.15

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Solution

The fourth proportional to 16,890.15, 23,308.29 and 9,438.15 is: 13,024.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,890.15 : 23,308.29 = 9,438.15 : x
  2. Step 2: Convert to fraction form
    16,890.15/23,308.29 = 9,438.15/x
  3. Step 3: Cross multiply
    16,890.15x = 23,308.29 × 9,438.15
  4. Step 4: Simplify right side
    16,890.15x = 219,987,137.26
  5. Step 5: Solve for x
    x = 219,987,137.26/16,890.15
  6. Step 6: Final answer
    x = 13,024.58

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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.