Home / 12,899.08-19,347.90-5,108.68

Finding the Fourth Proportional to 12,899.08, 19,347.90 and 5,108.68

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Solution

The fourth proportional to 12,899.08, 19,347.90 and 5,108.68 is: 7,662.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,899.08 : 19,347.90 = 5,108.68 : x
  2. Step 2: Convert to fraction form
    12,899.08/19,347.90 = 5,108.68/x
  3. Step 3: Cross multiply
    12,899.08x = 19,347.90 × 5,108.68
  4. Step 4: Simplify right side
    12,899.08x = 98,842,229.77
  5. Step 5: Solve for x
    x = 98,842,229.77/12,899.08
  6. Step 6: Final answer
    x = 7,662.73

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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.