Home / 13,788.58-19,030.21-7,739.46

Finding the Fourth Proportional to 13,788.58, 19,030.21 and 7,739.46

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Solution

The fourth proportional to 13,788.58, 19,030.21 and 7,739.46 is: 10,681.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,788.58 : 19,030.21 = 7,739.46 : x
  2. Step 2: Convert to fraction form
    13,788.58/19,030.21 = 7,739.46/x
  3. Step 3: Cross multiply
    13,788.58x = 19,030.21 × 7,739.46
  4. Step 4: Simplify right side
    13,788.58x = 147,283,549.09
  5. Step 5: Solve for x
    x = 147,283,549.09/13,788.58
  6. Step 6: Final answer
    x = 10,681.56

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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.