Home / 14,954.93-20,638.72-8,240.55

Finding the Fourth Proportional to 14,954.93, 20,638.72 and 8,240.55

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Solution

The fourth proportional to 14,954.93, 20,638.72 and 8,240.55 is: 11,372.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,954.93 : 20,638.72 = 8,240.55 : x
  2. Step 2: Convert to fraction form
    14,954.93/20,638.72 = 8,240.55/x
  3. Step 3: Cross multiply
    14,954.93x = 20,638.72 × 8,240.55
  4. Step 4: Simplify right side
    14,954.93x = 170,074,406.74
  5. Step 5: Solve for x
    x = 170,074,406.74/14,954.93
  6. Step 6: Final answer
    x = 11,372.46

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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.