Home / 9,919.73-13,688.81-5,938.52

Finding the Fourth Proportional to 9,919.73, 13,688.81 and 5,938.52

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Solution

The fourth proportional to 9,919.73, 13,688.81 and 5,938.52 is: 8,194.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.73 : 13,688.81 = 5,938.52 : x
  2. Step 2: Convert to fraction form
    9,919.73/13,688.81 = 5,938.52/x
  3. Step 3: Cross multiply
    9,919.73x = 13,688.81 × 5,938.52
  4. Step 4: Simplify right side
    9,919.73x = 81,291,173.82
  5. Step 5: Solve for x
    x = 81,291,173.82/9,919.73
  6. Step 6: Final answer
    x = 8,194.90

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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.