Home / 7,142.06-10,692.36-5,394.35

Finding the Fourth Proportional to 7,142.06, 10,692.36 and 5,394.35

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Solution

The fourth proportional to 7,142.06, 10,692.36 and 5,394.35 is: 8,075.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,142.06 : 10,692.36 = 5,394.35 : x
  2. Step 2: Convert to fraction form
    7,142.06/10,692.36 = 5,394.35/x
  3. Step 3: Cross multiply
    7,142.06x = 10,692.36 × 5,394.35
  4. Step 4: Simplify right side
    7,142.06x = 57,678,278.70
  5. Step 5: Solve for x
    x = 57,678,278.70/7,142.06
  6. Step 6: Final answer
    x = 8,075.87

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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.