Home / 12,905.74-19,365.67-5,008.57

Finding the Fourth Proportional to 12,905.74, 19,365.67 and 5,008.57

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Solution

The fourth proportional to 12,905.74, 19,365.67 and 5,008.57 is: 7,515.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,905.74 : 19,365.67 = 5,008.57 : x
  2. Step 2: Convert to fraction form
    12,905.74/19,365.67 = 5,008.57/x
  3. Step 3: Cross multiply
    12,905.74x = 19,365.67 × 5,008.57
  4. Step 4: Simplify right side
    12,905.74x = 96,994,279.78
  5. Step 5: Solve for x
    x = 96,994,279.78/12,905.74
  6. Step 6: Final answer
    x = 7,515.59

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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.