Home / 16,977.79-23,430.83-9,906.49

Finding the Fourth Proportional to 16,977.79, 23,430.83 and 9,906.49

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Solution

The fourth proportional to 16,977.79, 23,430.83 and 9,906.49 is: 13,671.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,977.79 : 23,430.83 = 9,906.49 : x
  2. Step 2: Convert to fraction form
    16,977.79/23,430.83 = 9,906.49/x
  3. Step 3: Cross multiply
    16,977.79x = 23,430.83 × 9,906.49
  4. Step 4: Simplify right side
    16,977.79x = 232,117,283.09
  5. Step 5: Solve for x
    x = 232,117,283.09/16,977.79
  6. Step 6: Final answer
    x = 13,671.82

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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.