Home / 8,748.34-12,072.65-4,971.21

Finding the Fourth Proportional to 8,748.34, 12,072.65 and 4,971.21

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Solution

The fourth proportional to 8,748.34, 12,072.65 and 4,971.21 is: 6,860.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.34 : 12,072.65 = 4,971.21 : x
  2. Step 2: Convert to fraction form
    8,748.34/12,072.65 = 4,971.21/x
  3. Step 3: Cross multiply
    8,748.34x = 12,072.65 × 4,971.21
  4. Step 4: Simplify right side
    8,748.34x = 60,015,608.28
  5. Step 5: Solve for x
    x = 60,015,608.28/8,748.34
  6. Step 6: Final answer
    x = 6,860.23

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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.