Home / 13,975.90-20,963.40-6,078.43

Finding the Fourth Proportional to 13,975.90, 20,963.40 and 6,078.43

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Solution

The fourth proportional to 13,975.90, 20,963.40 and 6,078.43 is: 9,117.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.90 : 20,963.40 = 6,078.43 : x
  2. Step 2: Convert to fraction form
    13,975.90/20,963.40 = 6,078.43/x
  3. Step 3: Cross multiply
    13,975.90x = 20,963.40 × 6,078.43
  4. Step 4: Simplify right side
    13,975.90x = 127,424,559.46
  5. Step 5: Solve for x
    x = 127,424,559.46/13,975.90
  6. Step 6: Final answer
    x = 9,117.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.