Home / 13,890.65-20,825.53-4,525.09

Finding the Fourth Proportional to 13,890.65, 20,825.53 and 4,525.09

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Solution

The fourth proportional to 13,890.65, 20,825.53 and 4,525.09 is: 6,784.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,890.65 : 20,825.53 = 4,525.09 : x
  2. Step 2: Convert to fraction form
    13,890.65/20,825.53 = 4,525.09/x
  3. Step 3: Cross multiply
    13,890.65x = 20,825.53 × 4,525.09
  4. Step 4: Simplify right side
    13,890.65x = 94,237,334.17
  5. Step 5: Solve for x
    x = 94,237,334.17/13,890.65
  6. Step 6: Final answer
    x = 6,784.23

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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.