Home / 11,040.56-16,566.78-8,580.32

Finding the Fourth Proportional to 11,040.56, 16,566.78 and 8,580.32

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Solution

The fourth proportional to 11,040.56, 16,566.78 and 8,580.32 is: 12,875.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,040.56 : 16,566.78 = 8,580.32 : x
  2. Step 2: Convert to fraction form
    11,040.56/16,566.78 = 8,580.32/x
  3. Step 3: Cross multiply
    11,040.56x = 16,566.78 × 8,580.32
  4. Step 4: Simplify right side
    11,040.56x = 142,148,273.77
  5. Step 5: Solve for x
    x = 142,148,273.77/11,040.56
  6. Step 6: Final answer
    x = 12,875.10

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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.