Home / 14,840.09-20,478.53-8,124.43

Finding the Fourth Proportional to 14,840.09, 20,478.53 and 8,124.43

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Solution

The fourth proportional to 14,840.09, 20,478.53 and 8,124.43 is: 11,211.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,840.09 : 20,478.53 = 8,124.43 : x
  2. Step 2: Convert to fraction form
    14,840.09/20,478.53 = 8,124.43/x
  3. Step 3: Cross multiply
    14,840.09x = 20,478.53 × 8,124.43
  4. Step 4: Simplify right side
    14,840.09x = 166,376,383.49
  5. Step 5: Solve for x
    x = 166,376,383.49/14,840.09
  6. Step 6: Final answer
    x = 11,211.28

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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.