Home / 9,169.13-12,653.21-4,977.38

Finding the Fourth Proportional to 9,169.13, 12,653.21 and 4,977.38

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Solution

The fourth proportional to 9,169.13, 12,653.21 and 4,977.38 is: 6,868.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.13 : 12,653.21 = 4,977.38 : x
  2. Step 2: Convert to fraction form
    9,169.13/12,653.21 = 4,977.38/x
  3. Step 3: Cross multiply
    9,169.13x = 12,653.21 × 4,977.38
  4. Step 4: Simplify right side
    9,169.13x = 62,979,878.47
  5. Step 5: Solve for x
    x = 62,979,878.47/9,169.13
  6. Step 6: Final answer
    x = 6,868.68

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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.