Home / 11,551.95-17,335.71-4,978.80

Finding the Fourth Proportional to 11,551.95, 17,335.71 and 4,978.80

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Solution

The fourth proportional to 11,551.95, 17,335.71 and 4,978.80 is: 7,471.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,551.95 : 17,335.71 = 4,978.80 : x
  2. Step 2: Convert to fraction form
    11,551.95/17,335.71 = 4,978.80/x
  3. Step 3: Cross multiply
    11,551.95x = 17,335.71 × 4,978.80
  4. Step 4: Simplify right side
    11,551.95x = 86,311,032.95
  5. Step 5: Solve for x
    x = 86,311,032.95/11,551.95
  6. Step 6: Final answer
    x = 7,471.56

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.