Home / 19,085.63-26,335.13-12,380.45

Finding the Fourth Proportional to 19,085.63, 26,335.13 and 12,380.45

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Solution

The fourth proportional to 19,085.63, 26,335.13 and 12,380.45 is: 17,083.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,085.63 : 26,335.13 = 12,380.45 : x
  2. Step 2: Convert to fraction form
    19,085.63/26,335.13 = 12,380.45/x
  3. Step 3: Cross multiply
    19,085.63x = 26,335.13 × 12,380.45
  4. Step 4: Simplify right side
    19,085.63x = 326,040,566.63
  5. Step 5: Solve for x
    x = 326,040,566.63/19,085.63
  6. Step 6: Final answer
    x = 17,083.04

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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.