Home / 7,875.21-10,866.66-4,518.18

Finding the Fourth Proportional to 7,875.21, 10,866.66 and 4,518.18

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Solution

The fourth proportional to 7,875.21, 10,866.66 and 4,518.18 is: 6,234.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,875.21 : 10,866.66 = 4,518.18 : x
  2. Step 2: Convert to fraction form
    7,875.21/10,866.66 = 4,518.18/x
  3. Step 3: Cross multiply
    7,875.21x = 10,866.66 × 4,518.18
  4. Step 4: Simplify right side
    7,875.21x = 49,097,525.88
  5. Step 5: Solve for x
    x = 49,097,525.88/7,875.21
  6. Step 6: Final answer
    x = 6,234.44

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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.