Home / 10,436.09-15,629.53-8,077.21

Finding the Fourth Proportional to 10,436.09, 15,629.53 and 8,077.21

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Solution

The fourth proportional to 10,436.09, 15,629.53 and 8,077.21 is: 12,096.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,436.09 : 15,629.53 = 8,077.21 : x
  2. Step 2: Convert to fraction form
    10,436.09/15,629.53 = 8,077.21/x
  3. Step 3: Cross multiply
    10,436.09x = 15,629.53 × 8,077.21
  4. Step 4: Simplify right side
    10,436.09x = 126,242,952.63
  5. Step 5: Solve for x
    x = 126,242,952.63/10,436.09
  6. Step 6: Final answer
    x = 12,096.77

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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.