Home / 8,851.86-12,220.65-5,871.74

Finding the Fourth Proportional to 8,851.86, 12,220.65 and 5,871.74

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Solution

The fourth proportional to 8,851.86, 12,220.65 and 5,871.74 is: 8,106.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,851.86 : 12,220.65 = 5,871.74 : x
  2. Step 2: Convert to fraction form
    8,851.86/12,220.65 = 5,871.74/x
  3. Step 3: Cross multiply
    8,851.86x = 12,220.65 × 5,871.74
  4. Step 4: Simplify right side
    8,851.86x = 71,756,418.33
  5. Step 5: Solve for x
    x = 71,756,418.33/8,851.86
  6. Step 6: Final answer
    x = 8,106.37

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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.