Home / 12,958.48-19,412.29-6,722.56

Finding the Fourth Proportional to 12,958.48, 19,412.29 and 6,722.56

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Solution

The fourth proportional to 12,958.48, 19,412.29 and 6,722.56 is: 10,070.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,958.48 : 19,412.29 = 6,722.56 : x
  2. Step 2: Convert to fraction form
    12,958.48/19,412.29 = 6,722.56/x
  3. Step 3: Cross multiply
    12,958.48x = 19,412.29 × 6,722.56
  4. Step 4: Simplify right side
    12,958.48x = 130,500,284.26
  5. Step 5: Solve for x
    x = 130,500,284.26/12,958.48
  6. Step 6: Final answer
    x = 10,070.65

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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.