Home / 12,330.03-18,482.09-6,485.07

Finding the Fourth Proportional to 12,330.03, 18,482.09 and 6,485.07

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Solution

The fourth proportional to 12,330.03, 18,482.09 and 6,485.07 is: 9,720.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,330.03 : 18,482.09 = 6,485.07 : x
  2. Step 2: Convert to fraction form
    12,330.03/18,482.09 = 6,485.07/x
  3. Step 3: Cross multiply
    12,330.03x = 18,482.09 × 6,485.07
  4. Step 4: Simplify right side
    12,330.03x = 119,857,614.97
  5. Step 5: Solve for x
    x = 119,857,614.97/12,330.03
  6. Step 6: Final answer
    x = 9,720.79

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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.