Home / 8,758.63-12,087.18-4,981.55

Finding the Fourth Proportional to 8,758.63, 12,087.18 and 4,981.55

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Solution

The fourth proportional to 8,758.63, 12,087.18 and 4,981.55 is: 6,874.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,758.63 : 12,087.18 = 4,981.55 : x
  2. Step 2: Convert to fraction form
    8,758.63/12,087.18 = 4,981.55/x
  3. Step 3: Cross multiply
    8,758.63x = 12,087.18 × 4,981.55
  4. Step 4: Simplify right side
    8,758.63x = 60,212,866.62
  5. Step 5: Solve for x
    x = 60,212,866.62/8,758.63
  6. Step 6: Final answer
    x = 6,874.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.