Home / 14,364.33-19,820.36-7,990.09

Finding the Fourth Proportional to 14,364.33, 19,820.36 and 7,990.09

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Solution

The fourth proportional to 14,364.33, 19,820.36 and 7,990.09 is: 11,024.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,364.33 : 19,820.36 = 7,990.09 : x
  2. Step 2: Convert to fraction form
    14,364.33/19,820.36 = 7,990.09/x
  3. Step 3: Cross multiply
    14,364.33x = 19,820.36 × 7,990.09
  4. Step 4: Simplify right side
    14,364.33x = 158,366,460.23
  5. Step 5: Solve for x
    x = 158,366,460.23/14,364.33
  6. Step 6: Final answer
    x = 11,024.98

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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.