Home / 8,965.80-12,371.59-4,986.14

Finding the Fourth Proportional to 8,965.80, 12,371.59 and 4,986.14

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Solution

The fourth proportional to 8,965.80, 12,371.59 and 4,986.14 is: 6,880.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.80 : 12,371.59 = 4,986.14 : x
  2. Step 2: Convert to fraction form
    8,965.80/12,371.59 = 4,986.14/x
  3. Step 3: Cross multiply
    8,965.80x = 12,371.59 × 4,986.14
  4. Step 4: Simplify right side
    8,965.80x = 61,686,498.23
  5. Step 5: Solve for x
    x = 61,686,498.23/8,965.80
  6. Step 6: Final answer
    x = 6,880.20

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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.