Home / 12,587.58-18,864.34-4,792.14

Finding the Fourth Proportional to 12,587.58, 18,864.34 and 4,792.14

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Solution

The fourth proportional to 12,587.58, 18,864.34 and 4,792.14 is: 7,181.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.58 : 18,864.34 = 4,792.14 : x
  2. Step 2: Convert to fraction form
    12,587.58/18,864.34 = 4,792.14/x
  3. Step 3: Cross multiply
    12,587.58x = 18,864.34 × 4,792.14
  4. Step 4: Simplify right side
    12,587.58x = 90,400,520.21
  5. Step 5: Solve for x
    x = 90,400,520.21/12,587.58
  6. Step 6: Final answer
    x = 7,181.73

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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.