Home / 12,590.75-18,869.10-4,795.31

Finding the Fourth Proportional to 12,590.75, 18,869.10 and 4,795.31

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Solution

The fourth proportional to 12,590.75, 18,869.10 and 4,795.31 is: 7,186.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,590.75 : 18,869.10 = 4,795.31 : x
  2. Step 2: Convert to fraction form
    12,590.75/18,869.10 = 4,795.31/x
  3. Step 3: Cross multiply
    12,590.75x = 18,869.10 × 4,795.31
  4. Step 4: Simplify right side
    12,590.75x = 90,483,089.58
  5. Step 5: Solve for x
    x = 90,483,089.58/12,590.75
  6. Step 6: Final answer
    x = 7,186.48

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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.