Home / 9,172.42-12,657.87-4,980.70

Finding the Fourth Proportional to 9,172.42, 12,657.87 and 4,980.70

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Solution

The fourth proportional to 9,172.42, 12,657.87 and 4,980.70 is: 6,873.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,172.42 : 12,657.87 = 4,980.70 : x
  2. Step 2: Convert to fraction form
    9,172.42/12,657.87 = 4,980.70/x
  3. Step 3: Cross multiply
    9,172.42x = 12,657.87 × 4,980.70
  4. Step 4: Simplify right side
    9,172.42x = 63,045,053.11
  5. Step 5: Solve for x
    x = 63,045,053.11/9,172.42
  6. Step 6: Final answer
    x = 6,873.33

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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.