Home / 11,287.80-15,573.79-7,302.60

Finding the Fourth Proportional to 11,287.80, 15,573.79 and 7,302.60

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Solution

The fourth proportional to 11,287.80, 15,573.79 and 7,302.60 is: 10,075.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,287.80 : 15,573.79 = 7,302.60 : x
  2. Step 2: Convert to fraction form
    11,287.80/15,573.79 = 7,302.60/x
  3. Step 3: Cross multiply
    11,287.80x = 15,573.79 × 7,302.60
  4. Step 4: Simplify right side
    11,287.80x = 113,729,062.73
  5. Step 5: Solve for x
    x = 113,729,062.73/11,287.80
  6. Step 6: Final answer
    x = 10,075.40

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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.