Home / 11,428.80-17,159.40-7,054.80

Finding the Fourth Proportional to 11,428.80, 17,159.40 and 7,054.80

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Solution

The fourth proportional to 11,428.80, 17,159.40 and 7,054.80 is: 10,592.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,428.80 : 17,159.40 = 7,054.80 : x
  2. Step 2: Convert to fraction form
    11,428.80/17,159.40 = 7,054.80/x
  3. Step 3: Cross multiply
    11,428.80x = 17,159.40 × 7,054.80
  4. Step 4: Simplify right side
    11,428.80x = 121,056,135.12
  5. Step 5: Solve for x
    x = 121,056,135.12/11,428.80
  6. Step 6: Final answer
    x = 10,592.20

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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.