Home / 9,438.02-13,018.73-6,789.02

Finding the Fourth Proportional to 9,438.02, 13,018.73 and 6,789.02

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Solution

The fourth proportional to 9,438.02, 13,018.73 and 6,789.02 is: 9,364.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,438.02 : 13,018.73 = 6,789.02 : x
  2. Step 2: Convert to fraction form
    9,438.02/13,018.73 = 6,789.02/x
  3. Step 3: Cross multiply
    9,438.02x = 13,018.73 × 6,789.02
  4. Step 4: Simplify right side
    9,438.02x = 88,384,319.31
  5. Step 5: Solve for x
    x = 88,384,319.31/9,438.02
  6. Step 6: Final answer
    x = 9,364.71

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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.