Home / 13,274.98-19,920.58-5,482.78

Finding the Fourth Proportional to 13,274.98, 19,920.58 and 5,482.78

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Solution

The fourth proportional to 13,274.98, 19,920.58 and 5,482.78 is: 8,227.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,274.98 : 19,920.58 = 5,482.78 : x
  2. Step 2: Convert to fraction form
    13,274.98/19,920.58 = 5,482.78/x
  3. Step 3: Cross multiply
    13,274.98x = 19,920.58 × 5,482.78
  4. Step 4: Simplify right side
    13,274.98x = 109,220,157.61
  5. Step 5: Solve for x
    x = 109,220,157.61/13,274.98
  6. Step 6: Final answer
    x = 8,227.52

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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.