Home / 13,869.63-20,810.52-5,107.05

Finding the Fourth Proportional to 13,869.63, 20,810.52 and 5,107.05

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Solution

The fourth proportional to 13,869.63, 20,810.52 and 5,107.05 is: 7,662.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.63 : 20,810.52 = 5,107.05 : x
  2. Step 2: Convert to fraction form
    13,869.63/20,810.52 = 5,107.05/x
  3. Step 3: Cross multiply
    13,869.63x = 20,810.52 × 5,107.05
  4. Step 4: Simplify right side
    13,869.63x = 106,280,366.17
  5. Step 5: Solve for x
    x = 106,280,366.17/13,869.63
  6. Step 6: Final answer
    x = 7,662.81

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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.