Home / 16,670.40-23,010.40-9,960.96

Finding the Fourth Proportional to 16,670.40, 23,010.40 and 9,960.96

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Solution

The fourth proportional to 16,670.40, 23,010.40 and 9,960.96 is: 13,749.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,670.40 : 23,010.40 = 9,960.96 : x
  2. Step 2: Convert to fraction form
    16,670.40/23,010.40 = 9,960.96/x
  3. Step 3: Cross multiply
    16,670.40x = 23,010.40 × 9,960.96
  4. Step 4: Simplify right side
    16,670.40x = 229,205,673.98
  5. Step 5: Solve for x
    x = 229,205,673.98/16,670.40
  6. Step 6: Final answer
    x = 13,749.26

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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.