Home / 14,629.76-20,189.09-7,915.37

Finding the Fourth Proportional to 14,629.76, 20,189.09 and 7,915.37

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Solution

The fourth proportional to 14,629.76, 20,189.09 and 7,915.37 is: 10,923.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,629.76 : 20,189.09 = 7,915.37 : x
  2. Step 2: Convert to fraction form
    14,629.76/20,189.09 = 7,915.37/x
  3. Step 3: Cross multiply
    14,629.76x = 20,189.09 × 7,915.37
  4. Step 4: Simplify right side
    14,629.76x = 159,804,117.31
  5. Step 5: Solve for x
    x = 159,804,117.31/14,629.76
  6. Step 6: Final answer
    x = 10,923.22

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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.