Home / 6,421.09-9,618.00-4,192.04

Finding the Fourth Proportional to 6,421.09, 9,618.00 and 4,192.04

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Solution

The fourth proportional to 6,421.09, 9,618.00 and 4,192.04 is: 6,279.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,421.09 : 9,618.00 = 4,192.04 : x
  2. Step 2: Convert to fraction form
    6,421.09/9,618.00 = 4,192.04/x
  3. Step 3: Cross multiply
    6,421.09x = 9,618.00 × 4,192.04
  4. Step 4: Simplify right side
    6,421.09x = 40,319,064.99
  5. Step 5: Solve for x
    x = 40,319,064.99/6,421.09
  6. Step 6: Final answer
    x = 6,279.17

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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.