Home / 13,734.90-20,676.60-12,510.18

Finding the Fourth Proportional to 13,734.90, 20,676.60 and 12,510.18

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Solution

The fourth proportional to 13,734.90, 20,676.60 and 12,510.18 is: 18,832.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,734.90 : 20,676.60 = 12,510.18 : x
  2. Step 2: Convert to fraction form
    13,734.90/20,676.60 = 12,510.18/x
  3. Step 3: Cross multiply
    13,734.90x = 20,676.60 × 12,510.18
  4. Step 4: Simplify right side
    13,734.90x = 258,667,987.79
  5. Step 5: Solve for x
    x = 258,667,987.79/13,734.90
  6. Step 6: Final answer
    x = 18,832.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.