Home / 8,748.68-12,072.74-4,971.35

Finding the Fourth Proportional to 8,748.68, 12,072.74 and 4,971.35

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Solution

The fourth proportional to 8,748.68, 12,072.74 and 4,971.35 is: 6,860.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.68 : 12,072.74 = 4,971.35 : x
  2. Step 2: Convert to fraction form
    8,748.68/12,072.74 = 4,971.35/x
  3. Step 3: Cross multiply
    8,748.68x = 12,072.74 × 4,971.35
  4. Step 4: Simplify right side
    8,748.68x = 60,017,730.78
  5. Step 5: Solve for x
    x = 60,017,730.78/8,748.68
  6. Step 6: Final answer
    x = 6,860.21

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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.