Home / 10,539.12-15,809.60-4,299.56

Finding the Fourth Proportional to 10,539.12, 15,809.60 and 4,299.56

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Solution

The fourth proportional to 10,539.12, 15,809.60 and 4,299.56 is: 6,449.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,539.12 : 15,809.60 = 4,299.56 : x
  2. Step 2: Convert to fraction form
    10,539.12/15,809.60 = 4,299.56/x
  3. Step 3: Cross multiply
    10,539.12x = 15,809.60 × 4,299.56
  4. Step 4: Simplify right side
    10,539.12x = 67,974,379.51
  5. Step 5: Solve for x
    x = 67,974,379.51/10,539.12
  6. Step 6: Final answer
    x = 6,449.72

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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.