Home / 19,809.54-27,333.69-11,307.78

Finding the Fourth Proportional to 19,809.54, 27,333.69 and 11,307.78

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Solution

The fourth proportional to 19,809.54, 27,333.69 and 11,307.78 is: 15,602.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.54 : 27,333.69 = 11,307.78 : x
  2. Step 2: Convert to fraction form
    19,809.54/27,333.69 = 11,307.78/x
  3. Step 3: Cross multiply
    19,809.54x = 27,333.69 × 11,307.78
  4. Step 4: Simplify right side
    19,809.54x = 309,083,353.11
  5. Step 5: Solve for x
    x = 309,083,353.11/19,809.54
  6. Step 6: Final answer
    x = 15,602.75

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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.