Home / 16,969.79-23,420.60-9,900.92

Finding the Fourth Proportional to 16,969.79, 23,420.60 and 9,900.92

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Solution

The fourth proportional to 16,969.79, 23,420.60 and 9,900.92 is: 13,664.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,969.79 : 23,420.60 = 9,900.92 : x
  2. Step 2: Convert to fraction form
    16,969.79/23,420.60 = 9,900.92/x
  3. Step 3: Cross multiply
    16,969.79x = 23,420.60 × 9,900.92
  4. Step 4: Simplify right side
    16,969.79x = 231,885,320.34
  5. Step 5: Solve for x
    x = 231,885,320.34/16,969.79
  6. Step 6: Final answer
    x = 13,664.60

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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.