Home / 11,520.51-17,280.75-6,586.68

Finding the Fourth Proportional to 11,520.51, 17,280.75 and 6,586.68

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Solution

The fourth proportional to 11,520.51, 17,280.75 and 6,586.68 is: 9,880.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.51 : 17,280.75 = 6,586.68 : x
  2. Step 2: Convert to fraction form
    11,520.51/17,280.75 = 6,586.68/x
  3. Step 3: Cross multiply
    11,520.51x = 17,280.75 × 6,586.68
  4. Step 4: Simplify right side
    11,520.51x = 113,822,835.21
  5. Step 5: Solve for x
    x = 113,822,835.21/11,520.51
  6. Step 6: Final answer
    x = 9,880.02

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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.