Home / 10,529.21-15,780.11-4,281.94

Finding the Fourth Proportional to 10,529.21, 15,780.11 and 4,281.94

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Solution

The fourth proportional to 10,529.21, 15,780.11 and 4,281.94 is: 6,417.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,529.21 : 15,780.11 = 4,281.94 : x
  2. Step 2: Convert to fraction form
    10,529.21/15,780.11 = 4,281.94/x
  3. Step 3: Cross multiply
    10,529.21x = 15,780.11 × 4,281.94
  4. Step 4: Simplify right side
    10,529.21x = 67,569,405.31
  5. Step 5: Solve for x
    x = 67,569,405.31/10,529.21
  6. Step 6: Final answer
    x = 6,417.33

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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.