Home / 13,986.41-20,984.06-4,125.74

Finding the Fourth Proportional to 13,986.41, 20,984.06 and 4,125.74

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Solution

The fourth proportional to 13,986.41, 20,984.06 and 4,125.74 is: 6,189.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,986.41 : 20,984.06 = 4,125.74 : x
  2. Step 2: Convert to fraction form
    13,986.41/20,984.06 = 4,125.74/x
  3. Step 3: Cross multiply
    13,986.41x = 20,984.06 × 4,125.74
  4. Step 4: Simplify right side
    13,986.41x = 86,574,681.10
  5. Step 5: Solve for x
    x = 86,574,681.10/13,986.41
  6. Step 6: Final answer
    x = 6,189.92

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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.