Home / 14,028.06-19,358.79-7,740.42

Finding the Fourth Proportional to 14,028.06, 19,358.79 and 7,740.42

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Solution

The fourth proportional to 14,028.06, 19,358.79 and 7,740.42 is: 10,681.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,028.06 : 19,358.79 = 7,740.42 : x
  2. Step 2: Convert to fraction form
    14,028.06/19,358.79 = 7,740.42/x
  3. Step 3: Cross multiply
    14,028.06x = 19,358.79 × 7,740.42
  4. Step 4: Simplify right side
    14,028.06x = 149,845,165.29
  5. Step 5: Solve for x
    x = 149,845,165.29/14,028.06
  6. Step 6: Final answer
    x = 10,681.82

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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.