Home / 7,619.13-11,388.13-6,623.91

Finding the Fourth Proportional to 7,619.13, 11,388.13 and 6,623.91

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Solution

The fourth proportional to 7,619.13, 11,388.13 and 6,623.91 is: 9,900.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.13 : 11,388.13 = 6,623.91 : x
  2. Step 2: Convert to fraction form
    7,619.13/11,388.13 = 6,623.91/x
  3. Step 3: Cross multiply
    7,619.13x = 11,388.13 × 6,623.91
  4. Step 4: Simplify right side
    7,619.13x = 75,433,931.63
  5. Step 5: Solve for x
    x = 75,433,931.63/7,619.13
  6. Step 6: Final answer
    x = 9,900.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.