Home / 15,438.75-21,283.60-10,972.73

Finding the Fourth Proportional to 15,438.75, 21,283.60 and 10,972.73

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Solution

The fourth proportional to 15,438.75, 21,283.60 and 10,972.73 is: 15,126.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,438.75 : 21,283.60 = 10,972.73 : x
  2. Step 2: Convert to fraction form
    15,438.75/21,283.60 = 10,972.73/x
  3. Step 3: Cross multiply
    15,438.75x = 21,283.60 × 10,972.73
  4. Step 4: Simplify right side
    15,438.75x = 233,539,196.23
  5. Step 5: Solve for x
    x = 233,539,196.23/15,438.75
  6. Step 6: Final answer
    x = 15,126.82

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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.