Home / 10,447.29-14,385.74-9,028.37

Finding the Fourth Proportional to 10,447.29, 14,385.74 and 9,028.37

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Solution

The fourth proportional to 10,447.29, 14,385.74 and 9,028.37 is: 12,431.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,447.29 : 14,385.74 = 9,028.37 : x
  2. Step 2: Convert to fraction form
    10,447.29/14,385.74 = 9,028.37/x
  3. Step 3: Cross multiply
    10,447.29x = 14,385.74 × 9,028.37
  4. Step 4: Simplify right side
    10,447.29x = 129,879,774.27
  5. Step 5: Solve for x
    x = 129,879,774.27/10,447.29
  6. Step 6: Final answer
    x = 12,431.91

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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.