Home / 13,824.13-19,074.82-7,772.63

Finding the Fourth Proportional to 13,824.13, 19,074.82 and 7,772.63

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Solution

The fourth proportional to 13,824.13, 19,074.82 and 7,772.63 is: 10,724.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,824.13 : 19,074.82 = 7,772.63 : x
  2. Step 2: Convert to fraction form
    13,824.13/19,074.82 = 7,772.63/x
  3. Step 3: Cross multiply
    13,824.13x = 19,074.82 × 7,772.63
  4. Step 4: Simplify right side
    13,824.13x = 148,261,518.18
  5. Step 5: Solve for x
    x = 148,261,518.18/13,824.13
  6. Step 6: Final answer
    x = 10,724.84

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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.