Home / 11,417.50-17,127.85-3,520.64

Finding the Fourth Proportional to 11,417.50, 17,127.85 and 3,520.64

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Solution

The fourth proportional to 11,417.50, 17,127.85 and 3,520.64 is: 5,281.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,417.50 : 17,127.85 = 3,520.64 : x
  2. Step 2: Convert to fraction form
    11,417.50/17,127.85 = 3,520.64/x
  3. Step 3: Cross multiply
    11,417.50x = 17,127.85 × 3,520.64
  4. Step 4: Simplify right side
    11,417.50x = 60,301,027.84
  5. Step 5: Solve for x
    x = 60,301,027.84/11,417.50
  6. Step 6: Final answer
    x = 5,281.46

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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.