Home / 13,235.18-19,855.85-3,875.35

Finding the Fourth Proportional to 13,235.18, 19,855.85 and 3,875.35

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Solution

The fourth proportional to 13,235.18, 19,855.85 and 3,875.35 is: 5,813.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.18 : 19,855.85 = 3,875.35 : x
  2. Step 2: Convert to fraction form
    13,235.18/19,855.85 = 3,875.35/x
  3. Step 3: Cross multiply
    13,235.18x = 19,855.85 × 3,875.35
  4. Step 4: Simplify right side
    13,235.18x = 76,948,368.30
  5. Step 5: Solve for x
    x = 76,948,368.30/13,235.18
  6. Step 6: Final answer
    x = 5,813.93

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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.