Home / 12,459.78-18,690.75-4,564.44

Finding the Fourth Proportional to 12,459.78, 18,690.75 and 4,564.44

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Solution

The fourth proportional to 12,459.78, 18,690.75 and 4,564.44 is: 6,847.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.78 : 18,690.75 = 4,564.44 : x
  2. Step 2: Convert to fraction form
    12,459.78/18,690.75 = 4,564.44/x
  3. Step 3: Cross multiply
    12,459.78x = 18,690.75 × 4,564.44
  4. Step 4: Simplify right side
    12,459.78x = 85,312,806.93
  5. Step 5: Solve for x
    x = 85,312,806.93/12,459.78
  6. Step 6: Final answer
    x = 6,847.06

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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.