Home / 12,475.29-18,716.48-4,160.74

Finding the Fourth Proportional to 12,475.29, 18,716.48 and 4,160.74

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Solution

The fourth proportional to 12,475.29, 18,716.48 and 4,160.74 is: 6,242.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,475.29 : 18,716.48 = 4,160.74 : x
  2. Step 2: Convert to fraction form
    12,475.29/18,716.48 = 4,160.74/x
  3. Step 3: Cross multiply
    12,475.29x = 18,716.48 × 4,160.74
  4. Step 4: Simplify right side
    12,475.29x = 77,874,407.00
  5. Step 5: Solve for x
    x = 77,874,407.00/12,475.29
  6. Step 6: Final answer
    x = 6,242.29

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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.