Home / 13,454.10-18,543.33-12,676.50

Finding the Fourth Proportional to 13,454.10, 18,543.33 and 12,676.50

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Solution

The fourth proportional to 13,454.10, 18,543.33 and 12,676.50 is: 17,471.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,454.10 : 18,543.33 = 12,676.50 : x
  2. Step 2: Convert to fraction form
    13,454.10/18,543.33 = 12,676.50/x
  3. Step 3: Cross multiply
    13,454.10x = 18,543.33 × 12,676.50
  4. Step 4: Simplify right side
    13,454.10x = 235,064,522.75
  5. Step 5: Solve for x
    x = 235,064,522.75/13,454.10
  6. Step 6: Final answer
    x = 17,471.59

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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.