Home / 19,104.98-26,343.56-12,381.78

Finding the Fourth Proportional to 19,104.98, 26,343.56 and 12,381.78

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Solution

The fourth proportional to 19,104.98, 26,343.56 and 12,381.78 is: 17,073.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,104.98 : 26,343.56 = 12,381.78 : x
  2. Step 2: Convert to fraction form
    19,104.98/26,343.56 = 12,381.78/x
  3. Step 3: Cross multiply
    19,104.98x = 26,343.56 × 12,381.78
  4. Step 4: Simplify right side
    19,104.98x = 326,180,164.34
  5. Step 5: Solve for x
    x = 326,180,164.34/19,104.98
  6. Step 6: Final answer
    x = 17,073.04

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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.