Home / 13,875.83-20,813.93-4,515.89

Finding the Fourth Proportional to 13,875.83, 20,813.93 and 4,515.89

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Solution

The fourth proportional to 13,875.83, 20,813.93 and 4,515.89 is: 6,773.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.83 : 20,813.93 = 4,515.89 : x
  2. Step 2: Convert to fraction form
    13,875.83/20,813.93 = 4,515.89/x
  3. Step 3: Cross multiply
    13,875.83x = 20,813.93 × 4,515.89
  4. Step 4: Simplify right side
    13,875.83x = 93,993,481.67
  5. Step 5: Solve for x
    x = 93,993,481.67/13,875.83
  6. Step 6: Final answer
    x = 6,773.90

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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.