Home / 8,675.80-11,972.62-5,140.76

Finding the Fourth Proportional to 8,675.80, 11,972.62 and 5,140.76

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Solution

The fourth proportional to 8,675.80, 11,972.62 and 5,140.76 is: 7,094.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.80 : 11,972.62 = 5,140.76 : x
  2. Step 2: Convert to fraction form
    8,675.80/11,972.62 = 5,140.76/x
  3. Step 3: Cross multiply
    8,675.80x = 11,972.62 × 5,140.76
  4. Step 4: Simplify right side
    8,675.80x = 61,548,365.99
  5. Step 5: Solve for x
    x = 61,548,365.99/8,675.80
  6. Step 6: Final answer
    x = 7,094.26

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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.