Home / 10,958.91-15,130.23-8,436.27

Finding the Fourth Proportional to 10,958.91, 15,130.23 and 8,436.27

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Solution

The fourth proportional to 10,958.91, 15,130.23 and 8,436.27 is: 11,647.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,958.91 : 15,130.23 = 8,436.27 : x
  2. Step 2: Convert to fraction form
    10,958.91/15,130.23 = 8,436.27/x
  3. Step 3: Cross multiply
    10,958.91x = 15,130.23 × 8,436.27
  4. Step 4: Simplify right side
    10,958.91x = 127,642,705.44
  5. Step 5: Solve for x
    x = 127,642,705.44/10,958.91
  6. Step 6: Final answer
    x = 11,647.39

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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.