Home / 7,518.56-10,374.17-4,161.21

Finding the Fourth Proportional to 7,518.56, 10,374.17 and 4,161.21

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Solution

The fourth proportional to 7,518.56, 10,374.17 and 4,161.21 is: 5,741.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,518.56 : 10,374.17 = 4,161.21 : x
  2. Step 2: Convert to fraction form
    7,518.56/10,374.17 = 4,161.21/x
  3. Step 3: Cross multiply
    7,518.56x = 10,374.17 × 4,161.21
  4. Step 4: Simplify right side
    7,518.56x = 43,169,079.14
  5. Step 5: Solve for x
    x = 43,169,079.14/7,518.56
  6. Step 6: Final answer
    x = 5,741.67

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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.