Home / 10,503.36-15,757.40-3,929.60

Finding the Fourth Proportional to 10,503.36, 15,757.40 and 3,929.60

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Solution

The fourth proportional to 10,503.36, 15,757.40 and 3,929.60 is: 5,895.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,503.36 : 15,757.40 = 3,929.60 : x
  2. Step 2: Convert to fraction form
    10,503.36/15,757.40 = 3,929.60/x
  3. Step 3: Cross multiply
    10,503.36x = 15,757.40 × 3,929.60
  4. Step 4: Simplify right side
    10,503.36x = 61,920,298.79
  5. Step 5: Solve for x
    x = 61,920,298.79/10,503.36
  6. Step 6: Final answer
    x = 5,895.28

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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.