Home / 9,169.86-12,653.30-5,136.90

Finding the Fourth Proportional to 9,169.86, 12,653.30 and 5,136.90

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Solution

The fourth proportional to 9,169.86, 12,653.30 and 5,136.90 is: 7,088.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,169.86 : 12,653.30 = 5,136.90 : x
  2. Step 2: Convert to fraction form
    9,169.86/12,653.30 = 5,136.90/x
  3. Step 3: Cross multiply
    9,169.86x = 12,653.30 × 5,136.90
  4. Step 4: Simplify right side
    9,169.86x = 64,998,736.77
  5. Step 5: Solve for x
    x = 64,998,736.77/9,169.86
  6. Step 6: Final answer
    x = 7,088.30

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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.