Home / 12,782.33-17,639.60-7,476.11

Finding the Fourth Proportional to 12,782.33, 17,639.60 and 7,476.11

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Solution

The fourth proportional to 12,782.33, 17,639.60 and 7,476.11 is: 10,317.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,782.33 : 17,639.60 = 7,476.11 : x
  2. Step 2: Convert to fraction form
    12,782.33/17,639.60 = 7,476.11/x
  3. Step 3: Cross multiply
    12,782.33x = 17,639.60 × 7,476.11
  4. Step 4: Simplify right side
    12,782.33x = 131,875,589.96
  5. Step 5: Solve for x
    x = 131,875,589.96/12,782.33
  6. Step 6: Final answer
    x = 10,317.02

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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.