Home / 11,448.12-17,171.86-3,657.40

Finding the Fourth Proportional to 11,448.12, 17,171.86 and 3,657.40

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Solution

The fourth proportional to 11,448.12, 17,171.86 and 3,657.40 is: 5,486.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,448.12 : 17,171.86 = 3,657.40 : x
  2. Step 2: Convert to fraction form
    11,448.12/17,171.86 = 3,657.40/x
  3. Step 3: Cross multiply
    11,448.12x = 17,171.86 × 3,657.40
  4. Step 4: Simplify right side
    11,448.12x = 62,804,360.76
  5. Step 5: Solve for x
    x = 62,804,360.76/11,448.12
  6. Step 6: Final answer
    x = 5,486.00

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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.