Home / 13,875.36-20,813.23-4,515.42

Finding the Fourth Proportional to 13,875.36, 20,813.23 and 4,515.42

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Solution

The fourth proportional to 13,875.36, 20,813.23 and 4,515.42 is: 6,773.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.36 : 20,813.23 = 4,515.42 : x
  2. Step 2: Convert to fraction form
    13,875.36/20,813.23 = 4,515.42/x
  3. Step 3: Cross multiply
    13,875.36x = 20,813.23 × 4,515.42
  4. Step 4: Simplify right side
    13,875.36x = 93,980,558.70
  5. Step 5: Solve for x
    x = 93,980,558.70/13,875.36
  6. Step 6: Final answer
    x = 6,773.20

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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.