Home / 7,977.49-11,008.96-4,620.47

Finding the Fourth Proportional to 7,977.49, 11,008.96 and 4,620.47

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Solution

The fourth proportional to 7,977.49, 11,008.96 and 4,620.47 is: 6,376.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.49 : 11,008.96 = 4,620.47 : x
  2. Step 2: Convert to fraction form
    7,977.49/11,008.96 = 4,620.47/x
  3. Step 3: Cross multiply
    7,977.49x = 11,008.96 × 4,620.47
  4. Step 4: Simplify right side
    7,977.49x = 50,866,502.82
  5. Step 5: Solve for x
    x = 50,866,502.82/7,977.49
  6. Step 6: Final answer
    x = 6,376.26

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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.