Home / 11,075.67-15,287.81-7,540.92

Finding the Fourth Proportional to 11,075.67, 15,287.81 and 7,540.92

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Solution

The fourth proportional to 11,075.67, 15,287.81 and 7,540.92 is: 10,408.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,075.67 : 15,287.81 = 7,540.92 : x
  2. Step 2: Convert to fraction form
    11,075.67/15,287.81 = 7,540.92/x
  3. Step 3: Cross multiply
    11,075.67x = 15,287.81 × 7,540.92
  4. Step 4: Simplify right side
    11,075.67x = 115,284,114.48
  5. Step 5: Solve for x
    x = 115,284,114.48/11,075.67
  6. Step 6: Final answer
    x = 10,408.77

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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.