Home / 16,689.25-23,028.87-9,973.45

Finding the Fourth Proportional to 16,689.25, 23,028.87 and 9,973.45

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Solution

The fourth proportional to 16,689.25, 23,028.87 and 9,973.45 is: 13,761.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,689.25 : 23,028.87 = 9,973.45 : x
  2. Step 2: Convert to fraction form
    16,689.25/23,028.87 = 9,973.45/x
  3. Step 3: Cross multiply
    16,689.25x = 23,028.87 × 9,973.45
  4. Step 4: Simplify right side
    16,689.25x = 229,677,283.50
  5. Step 5: Solve for x
    x = 229,677,283.50/16,689.25
  6. Step 6: Final answer
    x = 13,761.99

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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.