Home / 11,157.51-16,730.94-6,478.95

Finding the Fourth Proportional to 11,157.51, 16,730.94 and 6,478.95

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Solution

The fourth proportional to 11,157.51, 16,730.94 and 6,478.95 is: 9,715.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,157.51 : 16,730.94 = 6,478.95 : x
  2. Step 2: Convert to fraction form
    11,157.51/16,730.94 = 6,478.95/x
  3. Step 3: Cross multiply
    11,157.51x = 16,730.94 × 6,478.95
  4. Step 4: Simplify right side
    11,157.51x = 108,398,923.71
  5. Step 5: Solve for x
    x = 108,398,923.71/11,157.51
  6. Step 6: Final answer
    x = 9,715.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.