Home / 8,075.28-11,146.09-5,242.51

Finding the Fourth Proportional to 8,075.28, 11,146.09 and 5,242.51

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Solution

The fourth proportional to 8,075.28, 11,146.09 and 5,242.51 is: 7,236.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,075.28 : 11,146.09 = 5,242.51 : x
  2. Step 2: Convert to fraction form
    8,075.28/11,146.09 = 5,242.51/x
  3. Step 3: Cross multiply
    8,075.28x = 11,146.09 × 5,242.51
  4. Step 4: Simplify right side
    8,075.28x = 58,433,505.38
  5. Step 5: Solve for x
    x = 58,433,505.38/8,075.28
  6. Step 6: Final answer
    x = 7,236.09

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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.