Home / 9,919.84-13,683.12-5,938.24

Finding the Fourth Proportional to 9,919.84, 13,683.12 and 5,938.24

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Solution

The fourth proportional to 9,919.84, 13,683.12 and 5,938.24 is: 8,191.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,919.84 : 13,683.12 = 5,938.24 : x
  2. Step 2: Convert to fraction form
    9,919.84/13,683.12 = 5,938.24/x
  3. Step 3: Cross multiply
    9,919.84x = 13,683.12 × 5,938.24
  4. Step 4: Simplify right side
    9,919.84x = 81,253,650.51
  5. Step 5: Solve for x
    x = 81,253,650.51/9,919.84
  6. Step 6: Final answer
    x = 8,191.02

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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.