Home / 13,935.90-19,230.26-8,269.67

Finding the Fourth Proportional to 13,935.90, 19,230.26 and 8,269.67

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Solution

The fourth proportional to 13,935.90, 19,230.26 and 8,269.67 is: 11,411.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,935.90 : 19,230.26 = 8,269.67 : x
  2. Step 2: Convert to fraction form
    13,935.90/19,230.26 = 8,269.67/x
  3. Step 3: Cross multiply
    13,935.90x = 19,230.26 × 8,269.67
  4. Step 4: Simplify right side
    13,935.90x = 159,027,904.21
  5. Step 5: Solve for x
    x = 159,027,904.21/13,935.90
  6. Step 6: Final answer
    x = 11,411.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.