Home / 9,172.26-12,657.47-4,980.51

Finding the Fourth Proportional to 9,172.26, 12,657.47 and 4,980.51

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Solution

The fourth proportional to 9,172.26, 12,657.47 and 4,980.51 is: 6,872.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.26 : 12,657.47 = 4,980.51 : x
  2. Step 2: Convert to fraction form
    9,172.26/12,657.47 = 4,980.51/x
  3. Step 3: Cross multiply
    9,172.26x = 12,657.47 × 4,980.51
  4. Step 4: Simplify right side
    9,172.26x = 63,040,631.01
  5. Step 5: Solve for x
    x = 63,040,631.01/9,172.26
  6. Step 6: Final answer
    x = 6,872.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.