Home / 12,873.40-19,308.30-4,109.20

Finding the Fourth Proportional to 12,873.40, 19,308.30 and 4,109.20

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Solution

The fourth proportional to 12,873.40, 19,308.30 and 4,109.20 is: 6,163.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,873.40 : 19,308.30 = 4,109.20 : x
  2. Step 2: Convert to fraction form
    12,873.40/19,308.30 = 4,109.20/x
  3. Step 3: Cross multiply
    12,873.40x = 19,308.30 × 4,109.20
  4. Step 4: Simplify right side
    12,873.40x = 79,341,666.36
  5. Step 5: Solve for x
    x = 79,341,666.36/12,873.40
  6. Step 6: Final answer
    x = 6,163.23

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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.