Home / 14,639.20-20,199.26-8,672.02

Finding the Fourth Proportional to 14,639.20, 20,199.26 and 8,672.02

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Solution

The fourth proportional to 14,639.20, 20,199.26 and 8,672.02 is: 11,965.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,639.20 : 20,199.26 = 8,672.02 : x
  2. Step 2: Convert to fraction form
    14,639.20/20,199.26 = 8,672.02/x
  3. Step 3: Cross multiply
    14,639.20x = 20,199.26 × 8,672.02
  4. Step 4: Simplify right side
    14,639.20x = 175,168,386.71
  5. Step 5: Solve for x
    x = 175,168,386.71/14,639.20
  6. Step 6: Final answer
    x = 11,965.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.