Home / 13,250.03-19,875.15-3,890.20

Finding the Fourth Proportional to 13,250.03, 19,875.15 and 3,890.20

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Solution

The fourth proportional to 13,250.03, 19,875.15 and 3,890.20 is: 5,835.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,250.03 : 19,875.15 = 3,890.20 : x
  2. Step 2: Convert to fraction form
    13,250.03/19,875.15 = 3,890.20/x
  3. Step 3: Cross multiply
    13,250.03x = 19,875.15 × 3,890.20
  4. Step 4: Simplify right side
    13,250.03x = 77,318,308.53
  5. Step 5: Solve for x
    x = 77,318,308.53/13,250.03
  6. Step 6: Final answer
    x = 5,835.33

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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.