Home / 12,975.06-19,460.76-4,210.05

Finding the Fourth Proportional to 12,975.06, 19,460.76 and 4,210.05

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Solution

The fourth proportional to 12,975.06, 19,460.76 and 4,210.05 is: 6,314.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,975.06 : 19,460.76 = 4,210.05 : x
  2. Step 2: Convert to fraction form
    12,975.06/19,460.76 = 4,210.05/x
  3. Step 3: Cross multiply
    12,975.06x = 19,460.76 × 4,210.05
  4. Step 4: Simplify right side
    12,975.06x = 81,930,772.64
  5. Step 5: Solve for x
    x = 81,930,772.64/12,975.06
  6. Step 6: Final answer
    x = 6,314.48

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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.