Home / 14,997.89-20,696.51-8,283.40

Finding the Fourth Proportional to 14,997.89, 20,696.51 and 8,283.40

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Solution

The fourth proportional to 14,997.89, 20,696.51 and 8,283.40 is: 11,430.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,997.89 : 20,696.51 = 8,283.40 : x
  2. Step 2: Convert to fraction form
    14,997.89/20,696.51 = 8,283.40/x
  3. Step 3: Cross multiply
    14,997.89x = 20,696.51 × 8,283.40
  4. Step 4: Simplify right side
    14,997.89x = 171,437,439.90
  5. Step 5: Solve for x
    x = 171,437,439.90/14,997.89
  6. Step 6: Final answer
    x = 11,430.77

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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.