Home / 13,741.25-18,962.93-7,772.79

Finding the Fourth Proportional to 13,741.25, 18,962.93 and 7,772.79

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Solution

The fourth proportional to 13,741.25, 18,962.93 and 7,772.79 is: 10,726.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,741.25 : 18,962.93 = 7,772.79 : x
  2. Step 2: Convert to fraction form
    13,741.25/18,962.93 = 7,772.79/x
  3. Step 3: Cross multiply
    13,741.25x = 18,962.93 × 7,772.79
  4. Step 4: Simplify right side
    13,741.25x = 147,394,833.81
  5. Step 5: Solve for x
    x = 147,394,833.81/13,741.25
  6. Step 6: Final answer
    x = 10,726.45

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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.