Home / 13,235.76-19,854.75-3,875.40

Finding the Fourth Proportional to 13,235.76, 19,854.75 and 3,875.40

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Solution

The fourth proportional to 13,235.76, 19,854.75 and 3,875.40 is: 5,813.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.76 : 19,854.75 = 3,875.40 : x
  2. Step 2: Convert to fraction form
    13,235.76/19,854.75 = 3,875.40/x
  3. Step 3: Cross multiply
    13,235.76x = 19,854.75 × 3,875.40
  4. Step 4: Simplify right side
    13,235.76x = 76,945,098.15
  5. Step 5: Solve for x
    x = 76,945,098.15/13,235.76
  6. Step 6: Final answer
    x = 5,813.43

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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.