Home / 6,722.19-10,081.95-6,388.80

Finding the Fourth Proportional to 6,722.19, 10,081.95 and 6,388.80

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Solution

The fourth proportional to 6,722.19, 10,081.95 and 6,388.80 is: 9,581.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,722.19 : 10,081.95 = 6,388.80 : x
  2. Step 2: Convert to fraction form
    6,722.19/10,081.95 = 6,388.80/x
  3. Step 3: Cross multiply
    6,722.19x = 10,081.95 × 6,388.80
  4. Step 4: Simplify right side
    6,722.19x = 64,411,562.16
  5. Step 5: Solve for x
    x = 64,411,562.16/6,722.19
  6. Step 6: Final answer
    x = 9,581.93

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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.