Home / 16,862.73-23,289.37-13,130.79

Finding the Fourth Proportional to 16,862.73, 23,289.37 and 13,130.79

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Solution

The fourth proportional to 16,862.73, 23,289.37 and 13,130.79 is: 18,135.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,862.73 : 23,289.37 = 13,130.79 : x
  2. Step 2: Convert to fraction form
    16,862.73/23,289.37 = 13,130.79/x
  3. Step 3: Cross multiply
    16,862.73x = 23,289.37 × 13,130.79
  4. Step 4: Simplify right side
    16,862.73x = 305,807,793.88
  5. Step 5: Solve for x
    x = 305,807,793.88/16,862.73
  6. Step 6: Final answer
    x = 18,135.13

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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.