Home / 12,477.16-18,682.60-7,540.12

Finding the Fourth Proportional to 12,477.16, 18,682.60 and 7,540.12

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Solution

The fourth proportional to 12,477.16, 18,682.60 and 7,540.12 is: 11,290.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,477.16 : 18,682.60 = 7,540.12 : x
  2. Step 2: Convert to fraction form
    12,477.16/18,682.60 = 7,540.12/x
  3. Step 3: Cross multiply
    12,477.16x = 18,682.60 × 7,540.12
  4. Step 4: Simplify right side
    12,477.16x = 140,869,045.91
  5. Step 5: Solve for x
    x = 140,869,045.91/12,477.16
  6. Step 6: Final answer
    x = 11,290.15

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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.