Home / 10,129.40-15,192.84-4,285.24

Finding the Fourth Proportional to 10,129.40, 15,192.84 and 4,285.24

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Solution

The fourth proportional to 10,129.40, 15,192.84 and 4,285.24 is: 6,427.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.40 : 15,192.84 = 4,285.24 : x
  2. Step 2: Convert to fraction form
    10,129.40/15,192.84 = 4,285.24/x
  3. Step 3: Cross multiply
    10,129.40x = 15,192.84 × 4,285.24
  4. Step 4: Simplify right side
    10,129.40x = 65,104,965.68
  5. Step 5: Solve for x
    x = 65,104,965.68/10,129.40
  6. Step 6: Final answer
    x = 6,427.33

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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.