Home / 16,820.07-23,211.40-9,747.15

Finding the Fourth Proportional to 16,820.07, 23,211.40 and 9,747.15

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Solution

The fourth proportional to 16,820.07, 23,211.40 and 9,747.15 is: 13,450.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,820.07 : 23,211.40 = 9,747.15 : x
  2. Step 2: Convert to fraction form
    16,820.07/23,211.40 = 9,747.15/x
  3. Step 3: Cross multiply
    16,820.07x = 23,211.40 × 9,747.15
  4. Step 4: Simplify right side
    16,820.07x = 226,244,997.51
  5. Step 5: Solve for x
    x = 226,244,997.51/16,820.07
  6. Step 6: Final answer
    x = 13,450.90

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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.