Home / 13,516.71-20,272.23-3,653.67

Finding the Fourth Proportional to 13,516.71, 20,272.23 and 3,653.67

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Solution

The fourth proportional to 13,516.71, 20,272.23 and 3,653.67 is: 5,479.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.71 : 20,272.23 = 3,653.67 : x
  2. Step 2: Convert to fraction form
    13,516.71/20,272.23 = 3,653.67/x
  3. Step 3: Cross multiply
    13,516.71x = 20,272.23 × 3,653.67
  4. Step 4: Simplify right side
    13,516.71x = 74,068,038.58
  5. Step 5: Solve for x
    x = 74,068,038.58/13,516.71
  6. Step 6: Final answer
    x = 5,479.74

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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.