Home / 14,515.64-21,675.18-11,520.48

Finding the Fourth Proportional to 14,515.64, 21,675.18 and 11,520.48

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Solution

The fourth proportional to 14,515.64, 21,675.18 and 11,520.48 is: 17,202.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.64 : 21,675.18 = 11,520.48 : x
  2. Step 2: Convert to fraction form
    14,515.64/21,675.18 = 11,520.48/x
  3. Step 3: Cross multiply
    14,515.64x = 21,675.18 × 11,520.48
  4. Step 4: Simplify right side
    14,515.64x = 249,708,477.69
  5. Step 5: Solve for x
    x = 249,708,477.69/14,515.64
  6. Step 6: Final answer
    x = 17,202.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.