Home / 11,580.12-15,980.04-6,544.80

Finding the Fourth Proportional to 11,580.12, 15,980.04 and 6,544.80

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Solution

The fourth proportional to 11,580.12, 15,980.04 and 6,544.80 is: 9,031.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,580.12 : 15,980.04 = 6,544.80 : x
  2. Step 2: Convert to fraction form
    11,580.12/15,980.04 = 6,544.80/x
  3. Step 3: Cross multiply
    11,580.12x = 15,980.04 × 6,544.80
  4. Step 4: Simplify right side
    11,580.12x = 104,586,165.79
  5. Step 5: Solve for x
    x = 104,586,165.79/11,580.12
  6. Step 6: Final answer
    x = 9,031.53

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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.