Home / 12,590.67-18,883.31-5,193.21

Finding the Fourth Proportional to 12,590.67, 18,883.31 and 5,193.21

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Solution

The fourth proportional to 12,590.67, 18,883.31 and 5,193.21 is: 7,788.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.67 : 18,883.31 = 5,193.21 : x
  2. Step 2: Convert to fraction form
    12,590.67/18,883.31 = 5,193.21/x
  3. Step 3: Cross multiply
    12,590.67x = 18,883.31 × 5,193.21
  4. Step 4: Simplify right side
    12,590.67x = 98,064,994.33
  5. Step 5: Solve for x
    x = 98,064,994.33/12,590.67
  6. Step 6: Final answer
    x = 7,788.70

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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.