Home / 15,912.03-21,953.65-9,195.21

Finding the Fourth Proportional to 15,912.03, 21,953.65 and 9,195.21

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Solution

The fourth proportional to 15,912.03, 21,953.65 and 9,195.21 is: 12,686.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,912.03 : 21,953.65 = 9,195.21 : x
  2. Step 2: Convert to fraction form
    15,912.03/21,953.65 = 9,195.21/x
  3. Step 3: Cross multiply
    15,912.03x = 21,953.65 × 9,195.21
  4. Step 4: Simplify right side
    15,912.03x = 201,868,422.02
  5. Step 5: Solve for x
    x = 201,868,422.02/15,912.03
  6. Step 6: Final answer
    x = 12,686.53

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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.