Home / 13,866.76-19,137.46-7,900.36

Finding the Fourth Proportional to 13,866.76, 19,137.46 and 7,900.36

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Solution

The fourth proportional to 13,866.76, 19,137.46 and 7,900.36 is: 10,903.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,866.76 : 19,137.46 = 7,900.36 : x
  2. Step 2: Convert to fraction form
    13,866.76/19,137.46 = 7,900.36/x
  3. Step 3: Cross multiply
    13,866.76x = 19,137.46 × 7,900.36
  4. Step 4: Simplify right side
    13,866.76x = 151,192,823.49
  5. Step 5: Solve for x
    x = 151,192,823.49/13,866.76
  6. Step 6: Final answer
    x = 10,903.26

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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.