Home / 14,986.20-22,449.60-13,139.40

Finding the Fourth Proportional to 14,986.20, 22,449.60 and 13,139.40

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Solution

The fourth proportional to 14,986.20, 22,449.60 and 13,139.40 is: 19,683.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,986.20 : 22,449.60 = 13,139.40 : x
  2. Step 2: Convert to fraction form
    14,986.20/22,449.60 = 13,139.40/x
  3. Step 3: Cross multiply
    14,986.20x = 22,449.60 × 13,139.40
  4. Step 4: Simplify right side
    14,986.20x = 294,974,274.24
  5. Step 5: Solve for x
    x = 294,974,274.24/14,986.20
  6. Step 6: Final answer
    x = 19,683.06

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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.