Home / 16,660.27-23,010.65-13,118.95

Finding the Fourth Proportional to 16,660.27, 23,010.65 and 13,118.95

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Solution

The fourth proportional to 16,660.27, 23,010.65 and 13,118.95 is: 18,119.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,660.27 : 23,010.65 = 13,118.95 : x
  2. Step 2: Convert to fraction form
    16,660.27/23,010.65 = 13,118.95/x
  3. Step 3: Cross multiply
    16,660.27x = 23,010.65 × 13,118.95
  4. Step 4: Simplify right side
    16,660.27x = 301,875,566.82
  5. Step 5: Solve for x
    x = 301,875,566.82/16,660.27
  6. Step 6: Final answer
    x = 18,119.49

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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.