Home / 13,629.40-20,444.10-11,901.40

Finding the Fourth Proportional to 13,629.40, 20,444.10 and 11,901.40

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Solution

The fourth proportional to 13,629.40, 20,444.10 and 11,901.40 is: 17,852.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.40 : 20,444.10 = 11,901.40 : x
  2. Step 2: Convert to fraction form
    13,629.40/20,444.10 = 11,901.40/x
  3. Step 3: Cross multiply
    13,629.40x = 20,444.10 × 11,901.40
  4. Step 4: Simplify right side
    13,629.40x = 243,313,411.74
  5. Step 5: Solve for x
    x = 243,313,411.74/13,629.40
  6. Step 6: Final answer
    x = 17,852.10

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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.