Home / 7,977.52-11,008.80-4,620.49

Finding the Fourth Proportional to 7,977.52, 11,008.80 and 4,620.49

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Solution

The fourth proportional to 7,977.52, 11,008.80 and 4,620.49 is: 6,376.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977.52 : 11,008.80 = 4,620.49 : x
  2. Step 2: Convert to fraction form
    7,977.52/11,008.80 = 4,620.49/x
  3. Step 3: Cross multiply
    7,977.52x = 11,008.80 × 4,620.49
  4. Step 4: Simplify right side
    7,977.52x = 50,866,050.31
  5. Step 5: Solve for x
    x = 50,866,050.31/7,977.52
  6. Step 6: Final answer
    x = 6,376.17

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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.