Home / 13,278.84-19,918.26-4,520.04

Finding the Fourth Proportional to 13,278.84, 19,918.26 and 4,520.04

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Solution

The fourth proportional to 13,278.84, 19,918.26 and 4,520.04 is: 6,780.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.84 : 19,918.26 = 4,520.04 : x
  2. Step 2: Convert to fraction form
    13,278.84/19,918.26 = 4,520.04/x
  3. Step 3: Cross multiply
    13,278.84x = 19,918.26 × 4,520.04
  4. Step 4: Simplify right side
    13,278.84x = 90,031,331.93
  5. Step 5: Solve for x
    x = 90,031,331.93/13,278.84
  6. Step 6: Final answer
    x = 6,780.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.