Home / 16,673.40-23,017.65-12,888

Finding the Fourth Proportional to 16,673.40, 23,017.65 and 12,888

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Solution

The fourth proportional to 16,673.40, 23,017.65 and 12,888 is: 17,791.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,673.40 : 23,017.65 = 12,888 : x
  2. Step 2: Convert to fraction form
    16,673.40/23,017.65 = 12,888/x
  3. Step 3: Cross multiply
    16,673.40x = 23,017.65 × 12,888
  4. Step 4: Simplify right side
    16,673.40x = 296,651,473.20
  5. Step 5: Solve for x
    x = 296,651,473.20/16,673.40
  6. Step 6: Final answer
    x = 17,791.90

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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.