Home / 11,980.68-16,532.91-6,675.21

Finding the Fourth Proportional to 11,980.68, 16,532.91 and 6,675.21

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Solution

The fourth proportional to 11,980.68, 16,532.91 and 6,675.21 is: 9,211.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,980.68 : 16,532.91 = 6,675.21 : x
  2. Step 2: Convert to fraction form
    11,980.68/16,532.91 = 6,675.21/x
  3. Step 3: Cross multiply
    11,980.68x = 16,532.91 × 6,675.21
  4. Step 4: Simplify right side
    11,980.68x = 110,360,646.16
  5. Step 5: Solve for x
    x = 110,360,646.16/11,980.68
  6. Step 6: Final answer
    x = 9,211.55

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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.