Home / 12,305.00-18,457.58-5,279.07

Finding the Fourth Proportional to 12,305.00, 18,457.58 and 5,279.07

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Solution

The fourth proportional to 12,305.00, 18,457.58 and 5,279.07 is: 7,918.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,305.00 : 18,457.58 = 5,279.07 : x
  2. Step 2: Convert to fraction form
    12,305.00/18,457.58 = 5,279.07/x
  3. Step 3: Cross multiply
    12,305.00x = 18,457.58 × 5,279.07
  4. Step 4: Simplify right side
    12,305.00x = 97,438,830.46
  5. Step 5: Solve for x
    x = 97,438,830.46/12,305.00
  6. Step 6: Final answer
    x = 7,918.64

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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.