Home / 15,361.88-21,200.99-9,397.52

Finding the Fourth Proportional to 15,361.88, 21,200.99 and 9,397.52

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Solution

The fourth proportional to 15,361.88, 21,200.99 and 9,397.52 is: 12,969.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,361.88 : 21,200.99 = 9,397.52 : x
  2. Step 2: Convert to fraction form
    15,361.88/21,200.99 = 9,397.52/x
  3. Step 3: Cross multiply
    15,361.88x = 21,200.99 × 9,397.52
  4. Step 4: Simplify right side
    15,361.88x = 199,236,706.92
  5. Step 5: Solve for x
    x = 199,236,706.92/15,361.88
  6. Step 6: Final answer
    x = 12,969.55

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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.