Home / 15,223.40-21,014.75-9,256.97

Finding the Fourth Proportional to 15,223.40, 21,014.75 and 9,256.97

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Solution

The fourth proportional to 15,223.40, 21,014.75 and 9,256.97 is: 12,778.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,223.40 : 21,014.75 = 9,256.97 : x
  2. Step 2: Convert to fraction form
    15,223.40/21,014.75 = 9,256.97/x
  3. Step 3: Cross multiply
    15,223.40x = 21,014.75 × 9,256.97
  4. Step 4: Simplify right side
    15,223.40x = 194,532,758.95
  5. Step 5: Solve for x
    x = 194,532,758.95/15,223.40
  6. Step 6: Final answer
    x = 12,778.54

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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.