Home / 14,707.40-20,272.62-11,515.32

Finding the Fourth Proportional to 14,707.40, 20,272.62 and 11,515.32

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Solution

The fourth proportional to 14,707.40, 20,272.62 and 11,515.32 is: 15,872.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,707.40 : 20,272.62 = 11,515.32 : x
  2. Step 2: Convert to fraction form
    14,707.40/20,272.62 = 11,515.32/x
  3. Step 3: Cross multiply
    14,707.40x = 20,272.62 × 11,515.32
  4. Step 4: Simplify right side
    14,707.40x = 233,445,706.54
  5. Step 5: Solve for x
    x = 233,445,706.54/14,707.40
  6. Step 6: Final answer
    x = 15,872.67

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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.