Home / 7,245.74-9,999.30-4,102.13

Finding the Fourth Proportional to 7,245.74, 9,999.30 and 4,102.13

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Solution

The fourth proportional to 7,245.74, 9,999.30 and 4,102.13 is: 5,661.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,245.74 : 9,999.30 = 4,102.13 : x
  2. Step 2: Convert to fraction form
    7,245.74/9,999.30 = 4,102.13/x
  3. Step 3: Cross multiply
    7,245.74x = 9,999.30 × 4,102.13
  4. Step 4: Simplify right side
    7,245.74x = 41,018,378.51
  5. Step 5: Solve for x
    x = 41,018,378.51/7,245.74
  6. Step 6: Final answer
    x = 5,661.04

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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.