Home / 14,945.72-20,606.82-9,347

Finding the Fourth Proportional to 14,945.72, 20,606.82 and 9,347

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Solution

The fourth proportional to 14,945.72, 20,606.82 and 9,347 is: 12,887.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,945.72 : 20,606.82 = 9,347 : x
  2. Step 2: Convert to fraction form
    14,945.72/20,606.82 = 9,347/x
  3. Step 3: Cross multiply
    14,945.72x = 20,606.82 × 9,347
  4. Step 4: Simplify right side
    14,945.72x = 192,611,946.54
  5. Step 5: Solve for x
    x = 192,611,946.54/14,945.72
  6. Step 6: Final answer
    x = 12,887.43

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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.