Home / 13,054.80-19,553.40-6,891.60

Finding the Fourth Proportional to 13,054.80, 19,553.40 and 6,891.60

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Solution

The fourth proportional to 13,054.80, 19,553.40 and 6,891.60 is: 10,322.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.80 : 19,553.40 = 6,891.60 : x
  2. Step 2: Convert to fraction form
    13,054.80/19,553.40 = 6,891.60/x
  3. Step 3: Cross multiply
    13,054.80x = 19,553.40 × 6,891.60
  4. Step 4: Simplify right side
    13,054.80x = 134,754,211.44
  5. Step 5: Solve for x
    x = 134,754,211.44/13,054.80
  6. Step 6: Final answer
    x = 10,322.20

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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.