Home / 8,975.80-12,386.89-4,942.41

Finding the Fourth Proportional to 8,975.80, 12,386.89 and 4,942.41

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Solution

The fourth proportional to 8,975.80, 12,386.89 and 4,942.41 is: 6,820.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,975.80 : 12,386.89 = 4,942.41 : x
  2. Step 2: Convert to fraction form
    8,975.80/12,386.89 = 4,942.41/x
  3. Step 3: Cross multiply
    8,975.80x = 12,386.89 × 4,942.41
  4. Step 4: Simplify right side
    8,975.80x = 61,221,089.00
  5. Step 5: Solve for x
    x = 61,221,089.00/8,975.80
  6. Step 6: Final answer
    x = 6,820.68

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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.