Home / 7,980.39-11,012.76-4,443.93

Finding the Fourth Proportional to 7,980.39, 11,012.76 and 4,443.93

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Solution

The fourth proportional to 7,980.39, 11,012.76 and 4,443.93 is: 6,132.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,980.39 : 11,012.76 = 4,443.93 : x
  2. Step 2: Convert to fraction form
    7,980.39/11,012.76 = 4,443.93/x
  3. Step 3: Cross multiply
    7,980.39x = 11,012.76 × 4,443.93
  4. Step 4: Simplify right side
    7,980.39x = 48,939,934.55
  5. Step 5: Solve for x
    x = 48,939,934.55/7,980.39
  6. Step 6: Final answer
    x = 6,132.52

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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.