Home / 11,710.36-17,539.16-8,215.94

Finding the Fourth Proportional to 11,710.36, 17,539.16 and 8,215.94

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Solution

The fourth proportional to 11,710.36, 17,539.16 and 8,215.94 is: 12,305.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,710.36 : 17,539.16 = 8,215.94 : x
  2. Step 2: Convert to fraction form
    11,710.36/17,539.16 = 8,215.94/x
  3. Step 3: Cross multiply
    11,710.36x = 17,539.16 × 8,215.94
  4. Step 4: Simplify right side
    11,710.36x = 144,100,686.21
  5. Step 5: Solve for x
    x = 144,100,686.21/11,710.36
  6. Step 6: Final answer
    x = 12,305.40

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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.