Home / 13,765.95-19,000.77-8,102.52

Finding the Fourth Proportional to 13,765.95, 19,000.77 and 8,102.52

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Solution

The fourth proportional to 13,765.95, 19,000.77 and 8,102.52 is: 11,183.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,765.95 : 19,000.77 = 8,102.52 : x
  2. Step 2: Convert to fraction form
    13,765.95/19,000.77 = 8,102.52/x
  3. Step 3: Cross multiply
    13,765.95x = 19,000.77 × 8,102.52
  4. Step 4: Simplify right side
    13,765.95x = 153,954,007.17
  5. Step 5: Solve for x
    x = 153,954,007.17/13,765.95
  6. Step 6: Final answer
    x = 11,183.68

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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.