Home / 15,273.90-21,077.57-8,559.95

Finding the Fourth Proportional to 15,273.90, 21,077.57 and 8,559.95

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Solution

The fourth proportional to 15,273.90, 21,077.57 and 8,559.95 is: 11,812.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,273.90 : 21,077.57 = 8,559.95 : x
  2. Step 2: Convert to fraction form
    15,273.90/21,077.57 = 8,559.95/x
  3. Step 3: Cross multiply
    15,273.90x = 21,077.57 × 8,559.95
  4. Step 4: Simplify right side
    15,273.90x = 180,422,861.33
  5. Step 5: Solve for x
    x = 180,422,861.33/15,273.90
  6. Step 6: Final answer
    x = 11,812.49

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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.