Home / 12,654.30-18,979.40-5,632.67

Finding the Fourth Proportional to 12,654.30, 18,979.40 and 5,632.67

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Solution

The fourth proportional to 12,654.30, 18,979.40 and 5,632.67 is: 8,448.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,654.30 : 18,979.40 = 5,632.67 : x
  2. Step 2: Convert to fraction form
    12,654.30/18,979.40 = 5,632.67/x
  3. Step 3: Cross multiply
    12,654.30x = 18,979.40 × 5,632.67
  4. Step 4: Simplify right side
    12,654.30x = 106,904,697.00
  5. Step 5: Solve for x
    x = 106,904,697.00/12,654.30
  6. Step 6: Final answer
    x = 8,448.09

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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.