Home / 8,965.58-12,371.81-4,986.05

Finding the Fourth Proportional to 8,965.58, 12,371.81 and 4,986.05

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Solution

The fourth proportional to 8,965.58, 12,371.81 and 4,986.05 is: 6,880.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,965.58 : 12,371.81 = 4,986.05 : x
  2. Step 2: Convert to fraction form
    8,965.58/12,371.81 = 4,986.05/x
  3. Step 3: Cross multiply
    8,965.58x = 12,371.81 × 4,986.05
  4. Step 4: Simplify right side
    8,965.58x = 61,686,376.46
  5. Step 5: Solve for x
    x = 61,686,376.46/8,965.58
  6. Step 6: Final answer
    x = 6,880.36

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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.