Home / 6,669.13-10,003.48-1,989.18

Finding the Fourth Proportional to 6,669.13, 10,003.48 and 1,989.18

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Solution

The fourth proportional to 6,669.13, 10,003.48 and 1,989.18 is: 2,983.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,669.13 : 10,003.48 = 1,989.18 : x
  2. Step 2: Convert to fraction form
    6,669.13/10,003.48 = 1,989.18/x
  3. Step 3: Cross multiply
    6,669.13x = 10,003.48 × 1,989.18
  4. Step 4: Simplify right side
    6,669.13x = 19,898,672.33
  5. Step 5: Solve for x
    x = 19,898,672.33/6,669.13
  6. Step 6: Final answer
    x = 2,983.70

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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.