Home / 12,556.62-18,823.74-4,770.90

Finding the Fourth Proportional to 12,556.62, 18,823.74 and 4,770.90

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Solution

The fourth proportional to 12,556.62, 18,823.74 and 4,770.90 is: 7,152.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,556.62 : 18,823.74 = 4,770.90 : x
  2. Step 2: Convert to fraction form
    12,556.62/18,823.74 = 4,770.90/x
  3. Step 3: Cross multiply
    12,556.62x = 18,823.74 × 4,770.90
  4. Step 4: Simplify right side
    12,556.62x = 89,806,181.17
  5. Step 5: Solve for x
    x = 89,806,181.17/12,556.62
  6. Step 6: Final answer
    x = 7,152.10

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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.