Home / 13,873.40-20,810.52-3,485.36

Finding the Fourth Proportional to 13,873.40, 20,810.52 and 3,485.36

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Solution

The fourth proportional to 13,873.40, 20,810.52 and 3,485.36 is: 5,228.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,873.40 : 20,810.52 = 3,485.36 : x
  2. Step 2: Convert to fraction form
    13,873.40/20,810.52 = 3,485.36/x
  3. Step 3: Cross multiply
    13,873.40x = 20,810.52 × 3,485.36
  4. Step 4: Simplify right side
    13,873.40x = 72,532,153.99
  5. Step 5: Solve for x
    x = 72,532,153.99/13,873.40
  6. Step 6: Final answer
    x = 5,228.15

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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.