Home / 13,135.84-19,703.28-3,901.60

Finding the Fourth Proportional to 13,135.84, 19,703.28 and 3,901.60

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Solution

The fourth proportional to 13,135.84, 19,703.28 and 3,901.60 is: 5,852.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,135.84 : 19,703.28 = 3,901.60 : x
  2. Step 2: Convert to fraction form
    13,135.84/19,703.28 = 3,901.60/x
  3. Step 3: Cross multiply
    13,135.84x = 19,703.28 × 3,901.60
  4. Step 4: Simplify right side
    13,135.84x = 76,874,317.25
  5. Step 5: Solve for x
    x = 76,874,317.25/13,135.84
  6. Step 6: Final answer
    x = 5,852.26

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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.