Home / 10,747.89-16,120.69-6,580.64

Finding the Fourth Proportional to 10,747.89, 16,120.69 and 6,580.64

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Solution

The fourth proportional to 10,747.89, 16,120.69 and 6,580.64 is: 9,870.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.89 : 16,120.69 = 6,580.64 : x
  2. Step 2: Convert to fraction form
    10,747.89/16,120.69 = 6,580.64/x
  3. Step 3: Cross multiply
    10,747.89x = 16,120.69 × 6,580.64
  4. Step 4: Simplify right side
    10,747.89x = 106,084,457.44
  5. Step 5: Solve for x
    x = 106,084,457.44/10,747.89
  6. Step 6: Final answer
    x = 9,870.26

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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.