Home / 10,509.89-15,756.94-4,960.08

Finding the Fourth Proportional to 10,509.89, 15,756.94 and 4,960.08

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Solution

The fourth proportional to 10,509.89, 15,756.94 and 4,960.08 is: 7,436.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,509.89 : 15,756.94 = 4,960.08 : x
  2. Step 2: Convert to fraction form
    10,509.89/15,756.94 = 4,960.08/x
  3. Step 3: Cross multiply
    10,509.89x = 15,756.94 × 4,960.08
  4. Step 4: Simplify right side
    10,509.89x = 78,155,630.07
  5. Step 5: Solve for x
    x = 78,155,630.07/10,509.89
  6. Step 6: Final answer
    x = 7,436.39

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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.