Home / 8,675.29-11,971.83-5,140.18

Finding the Fourth Proportional to 8,675.29, 11,971.83 and 5,140.18

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Solution

The fourth proportional to 8,675.29, 11,971.83 and 5,140.18 is: 7,093.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,675.29 : 11,971.83 = 5,140.18 : x
  2. Step 2: Convert to fraction form
    8,675.29/11,971.83 = 5,140.18/x
  3. Step 3: Cross multiply
    8,675.29x = 11,971.83 × 5,140.18
  4. Step 4: Simplify right side
    8,675.29x = 61,537,361.13
  5. Step 5: Solve for x
    x = 61,537,361.13/8,675.29
  6. Step 6: Final answer
    x = 7,093.41

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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.