Home / 14,648.72-20,211.73-8,679.35

Finding the Fourth Proportional to 14,648.72, 20,211.73 and 8,679.35

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Solution

The fourth proportional to 14,648.72, 20,211.73 and 8,679.35 is: 11,975.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,648.72 : 20,211.73 = 8,679.35 : x
  2. Step 2: Convert to fraction form
    14,648.72/20,211.73 = 8,679.35/x
  3. Step 3: Cross multiply
    14,648.72x = 20,211.73 × 8,679.35
  4. Step 4: Simplify right side
    14,648.72x = 175,424,707.61
  5. Step 5: Solve for x
    x = 175,424,707.61/14,648.72
  6. Step 6: Final answer
    x = 11,975.43

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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.