Home / 13,706.04-18,915.21-7,735.53

Finding the Fourth Proportional to 13,706.04, 18,915.21 and 7,735.53

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Solution

The fourth proportional to 13,706.04, 18,915.21 and 7,735.53 is: 10,675.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,706.04 : 18,915.21 = 7,735.53 : x
  2. Step 2: Convert to fraction form
    13,706.04/18,915.21 = 7,735.53/x
  3. Step 3: Cross multiply
    13,706.04x = 18,915.21 × 7,735.53
  4. Step 4: Simplify right side
    13,706.04x = 146,319,174.41
  5. Step 5: Solve for x
    x = 146,319,174.41/13,706.04
  6. Step 6: Final answer
    x = 10,675.53

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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.