Home / 7,002.23-10,489.50-4,220.69

Finding the Fourth Proportional to 7,002.23, 10,489.50 and 4,220.69

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Solution

The fourth proportional to 7,002.23, 10,489.50 and 4,220.69 is: 6,322.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,002.23 : 10,489.50 = 4,220.69 : x
  2. Step 2: Convert to fraction form
    7,002.23/10,489.50 = 4,220.69/x
  3. Step 3: Cross multiply
    7,002.23x = 10,489.50 × 4,220.69
  4. Step 4: Simplify right side
    7,002.23x = 44,272,875.31
  5. Step 5: Solve for x
    x = 44,272,875.31/7,002.23
  6. Step 6: Final answer
    x = 6,322.69

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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.