Home / 12,506.90-18,760.37-5,111.35

Finding the Fourth Proportional to 12,506.90, 18,760.37 and 5,111.35

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Solution

The fourth proportional to 12,506.90, 18,760.37 and 5,111.35 is: 7,667.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,506.90 : 18,760.37 = 5,111.35 : x
  2. Step 2: Convert to fraction form
    12,506.90/18,760.37 = 5,111.35/x
  3. Step 3: Cross multiply
    12,506.90x = 18,760.37 × 5,111.35
  4. Step 4: Simplify right side
    12,506.90x = 95,890,817.20
  5. Step 5: Solve for x
    x = 95,890,817.20/12,506.90
  6. Step 6: Final answer
    x = 7,667.04

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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.