Home / 14,139.44-19,512.36-7,851.76

Finding the Fourth Proportional to 14,139.44, 19,512.36 and 7,851.76

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Solution

The fourth proportional to 14,139.44, 19,512.36 and 7,851.76 is: 10,835.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.44 : 19,512.36 = 7,851.76 : x
  2. Step 2: Convert to fraction form
    14,139.44/19,512.36 = 7,851.76/x
  3. Step 3: Cross multiply
    14,139.44x = 19,512.36 × 7,851.76
  4. Step 4: Simplify right side
    14,139.44x = 153,206,367.75
  5. Step 5: Solve for x
    x = 153,206,367.75/14,139.44
  6. Step 6: Final answer
    x = 10,835.39

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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.