Home / 11,820.62-16,312.50-6,515.33

Finding the Fourth Proportional to 11,820.62, 16,312.50 and 6,515.33

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Solution

The fourth proportional to 11,820.62, 16,312.50 and 6,515.33 is: 8,991.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,820.62 : 16,312.50 = 6,515.33 : x
  2. Step 2: Convert to fraction form
    11,820.62/16,312.50 = 6,515.33/x
  3. Step 3: Cross multiply
    11,820.62x = 16,312.50 × 6,515.33
  4. Step 4: Simplify right side
    11,820.62x = 106,281,239.06
  5. Step 5: Solve for x
    x = 106,281,239.06/11,820.62
  6. Step 6: Final answer
    x = 8,991.18

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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.