Home / 7,421.05-10,240.83-4,063.74

Finding the Fourth Proportional to 7,421.05, 10,240.83 and 4,063.74

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Solution

The fourth proportional to 7,421.05, 10,240.83 and 4,063.74 is: 5,607.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,421.05 : 10,240.83 = 4,063.74 : x
  2. Step 2: Convert to fraction form
    7,421.05/10,240.83 = 4,063.74/x
  3. Step 3: Cross multiply
    7,421.05x = 10,240.83 × 4,063.74
  4. Step 4: Simplify right side
    7,421.05x = 41,616,070.50
  5. Step 5: Solve for x
    x = 41,616,070.50/7,421.05
  6. Step 6: Final answer
    x = 5,607.84

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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.