Home / 16,678.98-23,014.80-9,963.12

Finding the Fourth Proportional to 16,678.98, 23,014.80 and 9,963.12

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Solution

The fourth proportional to 16,678.98, 23,014.80 and 9,963.12 is: 13,747.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,678.98 : 23,014.80 = 9,963.12 : x
  2. Step 2: Convert to fraction form
    16,678.98/23,014.80 = 9,963.12/x
  3. Step 3: Cross multiply
    16,678.98x = 23,014.80 × 9,963.12
  4. Step 4: Simplify right side
    16,678.98x = 229,299,214.18
  5. Step 5: Solve for x
    x = 229,299,214.18/16,678.98
  6. Step 6: Final answer
    x = 13,747.80

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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.