Home / 11,513.10-17,263.98-3,720.90

Finding the Fourth Proportional to 11,513.10, 17,263.98 and 3,720.90

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Solution

The fourth proportional to 11,513.10, 17,263.98 and 3,720.90 is: 5,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,513.10 : 17,263.98 = 3,720.90 : x
  2. Step 2: Convert to fraction form
    11,513.10/17,263.98 = 3,720.90/x
  3. Step 3: Cross multiply
    11,513.10x = 17,263.98 × 3,720.90
  4. Step 4: Simplify right side
    11,513.10x = 64,237,543.18
  5. Step 5: Solve for x
    x = 64,237,543.18/11,513.10
  6. Step 6: Final answer
    x = 5,579.52

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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.