Home / 10,518.36-14,515.38-5,802.78

Finding the Fourth Proportional to 10,518.36, 14,515.38 and 5,802.78

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Solution

The fourth proportional to 10,518.36, 14,515.38 and 5,802.78 is: 8,007.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,518.36 : 14,515.38 = 5,802.78 : x
  2. Step 2: Convert to fraction form
    10,518.36/14,515.38 = 5,802.78/x
  3. Step 3: Cross multiply
    10,518.36x = 14,515.38 × 5,802.78
  4. Step 4: Simplify right side
    10,518.36x = 84,229,556.76
  5. Step 5: Solve for x
    x = 84,229,556.76/10,518.36
  6. Step 6: Final answer
    x = 8,007.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.