Home / 14,028.21-19,358.92-7,740.58

Finding the Fourth Proportional to 14,028.21, 19,358.92 and 7,740.58

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Solution

The fourth proportional to 14,028.21, 19,358.92 and 7,740.58 is: 10,681.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.21 : 19,358.92 = 7,740.58 : x
  2. Step 2: Convert to fraction form
    14,028.21/19,358.92 = 7,740.58/x
  3. Step 3: Cross multiply
    14,028.21x = 19,358.92 × 7,740.58
  4. Step 4: Simplify right side
    14,028.21x = 149,849,268.97
  5. Step 5: Solve for x
    x = 149,849,268.97/14,028.21
  6. Step 6: Final answer
    x = 10,681.99

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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.