Home / 10,505.40-15,762.94-4,269.72

Finding the Fourth Proportional to 10,505.40, 15,762.94 and 4,269.72

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Solution

The fourth proportional to 10,505.40, 15,762.94 and 4,269.72 is: 6,406.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,505.40 : 15,762.94 = 4,269.72 : x
  2. Step 2: Convert to fraction form
    10,505.40/15,762.94 = 4,269.72/x
  3. Step 3: Cross multiply
    10,505.40x = 15,762.94 × 4,269.72
  4. Step 4: Simplify right side
    10,505.40x = 67,303,340.18
  5. Step 5: Solve for x
    x = 67,303,340.18/10,505.40
  6. Step 6: Final answer
    x = 6,406.55

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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.