Home / 13,958.21-19,262.48-7,670.58

Finding the Fourth Proportional to 13,958.21, 19,262.48 and 7,670.58

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Solution

The fourth proportional to 13,958.21, 19,262.48 and 7,670.58 is: 10,585.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,958.21 : 19,262.48 = 7,670.58 : x
  2. Step 2: Convert to fraction form
    13,958.21/19,262.48 = 7,670.58/x
  3. Step 3: Cross multiply
    13,958.21x = 19,262.48 × 7,670.58
  4. Step 4: Simplify right side
    13,958.21x = 147,754,355.49
  5. Step 5: Solve for x
    x = 147,754,355.49/13,958.21
  6. Step 6: Final answer
    x = 10,585.48

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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.