Home / 8,747.94-12,070.86-5,211.06

Finding the Fourth Proportional to 8,747.94, 12,070.86 and 5,211.06

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Solution

The fourth proportional to 8,747.94, 12,070.86 and 5,211.06 is: 7,190.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.94 : 12,070.86 = 5,211.06 : x
  2. Step 2: Convert to fraction form
    8,747.94/12,070.86 = 5,211.06/x
  3. Step 3: Cross multiply
    8,747.94x = 12,070.86 × 5,211.06
  4. Step 4: Simplify right side
    8,747.94x = 62,901,975.71
  5. Step 5: Solve for x
    x = 62,901,975.71/8,747.94
  6. Step 6: Final answer
    x = 7,190.49

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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.