Home / 12,507.15-18,746.38-4,185.21

Finding the Fourth Proportional to 12,507.15, 18,746.38 and 4,185.21

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Solution

The fourth proportional to 12,507.15, 18,746.38 and 4,185.21 is: 6,273.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,507.15 : 18,746.38 = 4,185.21 : x
  2. Step 2: Convert to fraction form
    12,507.15/18,746.38 = 4,185.21/x
  3. Step 3: Cross multiply
    12,507.15x = 18,746.38 × 4,185.21
  4. Step 4: Simplify right side
    12,507.15x = 78,457,537.04
  5. Step 5: Solve for x
    x = 78,457,537.04/12,507.15
  6. Step 6: Final answer
    x = 6,273.01

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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.