Home / 13,675.50-20,515.23-4,312.35

Finding the Fourth Proportional to 13,675.50, 20,515.23 and 4,312.35

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Solution

The fourth proportional to 13,675.50, 20,515.23 and 4,312.35 is: 6,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,675.50 : 20,515.23 = 4,312.35 : x
  2. Step 2: Convert to fraction form
    13,675.50/20,515.23 = 4,312.35/x
  3. Step 3: Cross multiply
    13,675.50x = 20,515.23 × 4,312.35
  4. Step 4: Simplify right side
    13,675.50x = 88,468,852.09
  5. Step 5: Solve for x
    x = 88,468,852.09/13,675.50
  6. Step 6: Final answer
    x = 6,469.15

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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.