Home / 13,977.35-19,278.65-8,006.84

Finding the Fourth Proportional to 13,977.35, 19,278.65 and 8,006.84

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Solution

The fourth proportional to 13,977.35, 19,278.65 and 8,006.84 is: 11,043.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,977.35 : 19,278.65 = 8,006.84 : x
  2. Step 2: Convert to fraction form
    13,977.35/19,278.65 = 8,006.84/x
  3. Step 3: Cross multiply
    13,977.35x = 19,278.65 × 8,006.84
  4. Step 4: Simplify right side
    13,977.35x = 154,360,929.54
  5. Step 5: Solve for x
    x = 154,360,929.54/13,977.35
  6. Step 6: Final answer
    x = 11,043.65

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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.