Home / 13,999.03-21,003.66-6,506.05

Finding the Fourth Proportional to 13,999.03, 21,003.66 and 6,506.05

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Solution

The fourth proportional to 13,999.03, 21,003.66 and 6,506.05 is: 9,761.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,999.03 : 21,003.66 = 6,506.05 : x
  2. Step 2: Convert to fraction form
    13,999.03/21,003.66 = 6,506.05/x
  3. Step 3: Cross multiply
    13,999.03x = 21,003.66 × 6,506.05
  4. Step 4: Simplify right side
    13,999.03x = 136,650,862.14
  5. Step 5: Solve for x
    x = 136,650,862.14/13,999.03
  6. Step 6: Final answer
    x = 9,761.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.