Home / 10,518.48-15,766.52-7,913.36

Finding the Fourth Proportional to 10,518.48, 15,766.52 and 7,913.36

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Solution

The fourth proportional to 10,518.48, 15,766.52 and 7,913.36 is: 11,861.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.48 : 15,766.52 = 7,913.36 : x
  2. Step 2: Convert to fraction form
    10,518.48/15,766.52 = 7,913.36/x
  3. Step 3: Cross multiply
    10,518.48x = 15,766.52 × 7,913.36
  4. Step 4: Simplify right side
    10,518.48x = 124,766,148.71
  5. Step 5: Solve for x
    x = 124,766,148.71/10,518.48
  6. Step 6: Final answer
    x = 11,861.61

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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.