Home / 8,975.83-12,386.86-4,997.21

Finding the Fourth Proportional to 8,975.83, 12,386.86 and 4,997.21

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Solution

The fourth proportional to 8,975.83, 12,386.86 and 4,997.21 is: 6,896.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.83 : 12,386.86 = 4,997.21 : x
  2. Step 2: Convert to fraction form
    8,975.83/12,386.86 = 4,997.21/x
  3. Step 3: Cross multiply
    8,975.83x = 12,386.86 × 4,997.21
  4. Step 4: Simplify right side
    8,975.83x = 61,899,728.17
  5. Step 5: Solve for x
    x = 61,899,728.17/8,975.83
  6. Step 6: Final answer
    x = 6,896.27

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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.