Home / 8,438.68-11,646.80-4,903.95

Finding the Fourth Proportional to 8,438.68, 11,646.80 and 4,903.95

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Solution

The fourth proportional to 8,438.68, 11,646.80 and 4,903.95 is: 6,768.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438.68 : 11,646.80 = 4,903.95 : x
  2. Step 2: Convert to fraction form
    8,438.68/11,646.80 = 4,903.95/x
  3. Step 3: Cross multiply
    8,438.68x = 11,646.80 × 4,903.95
  4. Step 4: Simplify right side
    8,438.68x = 57,115,324.86
  5. Step 5: Solve for x
    x = 57,115,324.86/8,438.68
  6. Step 6: Final answer
    x = 6,768.28

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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.