Home / 18,929.97-26,123.40-11,376.45

Finding the Fourth Proportional to 18,929.97, 26,123.40 and 11,376.45

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Solution

The fourth proportional to 18,929.97, 26,123.40 and 11,376.45 is: 15,699.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.97 : 26,123.40 = 11,376.45 : x
  2. Step 2: Convert to fraction form
    18,929.97/26,123.40 = 11,376.45/x
  3. Step 3: Cross multiply
    18,929.97x = 26,123.40 × 11,376.45
  4. Step 4: Simplify right side
    18,929.97x = 297,191,553.93
  5. Step 5: Solve for x
    x = 297,191,553.93/18,929.97
  6. Step 6: Final answer
    x = 15,699.53

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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.