Home / 13,333.40-19,981.32-10,201.28

Finding the Fourth Proportional to 13,333.40, 19,981.32 and 10,201.28

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Solution

The fourth proportional to 13,333.40, 19,981.32 and 10,201.28 is: 15,287.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,333.40 : 19,981.32 = 10,201.28 : x
  2. Step 2: Convert to fraction form
    13,333.40/19,981.32 = 10,201.28/x
  3. Step 3: Cross multiply
    13,333.40x = 19,981.32 × 10,201.28
  4. Step 4: Simplify right side
    13,333.40x = 203,835,040.09
  5. Step 5: Solve for x
    x = 203,835,040.09/13,333.40
  6. Step 6: Final answer
    x = 15,287.55

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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.