Home / 11,520.99-17,280.88-5,675.63

Finding the Fourth Proportional to 11,520.99, 17,280.88 and 5,675.63

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Solution

The fourth proportional to 11,520.99, 17,280.88 and 5,675.63 is: 8,513.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,520.99 : 17,280.88 = 5,675.63 : x
  2. Step 2: Convert to fraction form
    11,520.99/17,280.88 = 5,675.63/x
  3. Step 3: Cross multiply
    11,520.99x = 17,280.88 × 5,675.63
  4. Step 4: Simplify right side
    11,520.99x = 98,079,780.36
  5. Step 5: Solve for x
    x = 98,079,780.36/11,520.99
  6. Step 6: Final answer
    x = 8,513.14

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Half scale
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Double scale
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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.