Home / 7,486.70-10,331.63-4,129.73

Finding the Fourth Proportional to 7,486.70, 10,331.63 and 4,129.73

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Solution

The fourth proportional to 7,486.70, 10,331.63 and 4,129.73 is: 5,699.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,486.70 : 10,331.63 = 4,129.73 : x
  2. Step 2: Convert to fraction form
    7,486.70/10,331.63 = 4,129.73/x
  3. Step 3: Cross multiply
    7,486.70x = 10,331.63 × 4,129.73
  4. Step 4: Simplify right side
    7,486.70x = 42,666,790.70
  5. Step 5: Solve for x
    x = 42,666,790.70/7,486.70
  6. Step 6: Final answer
    x = 5,699.01

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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.