Home / 7,021.18-10,530.91-4,388.92

Finding the Fourth Proportional to 7,021.18, 10,530.91 and 4,388.92

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Solution

The fourth proportional to 7,021.18, 10,530.91 and 4,388.92 is: 6,582.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,021.18 : 10,530.91 = 4,388.92 : x
  2. Step 2: Convert to fraction form
    7,021.18/10,530.91 = 4,388.92/x
  3. Step 3: Cross multiply
    7,021.18x = 10,530.91 × 4,388.92
  4. Step 4: Simplify right side
    7,021.18x = 46,219,300.68
  5. Step 5: Solve for x
    x = 46,219,300.68/7,021.18
  6. Step 6: Final answer
    x = 6,582.84

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.