Home / 13,262.76-18,301.20-7,883.28

Finding the Fourth Proportional to 13,262.76, 18,301.20 and 7,883.28

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Solution

The fourth proportional to 13,262.76, 18,301.20 and 7,883.28 is: 10,878.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,262.76 : 18,301.20 = 7,883.28 : x
  2. Step 2: Convert to fraction form
    13,262.76/18,301.20 = 7,883.28/x
  3. Step 3: Cross multiply
    13,262.76x = 18,301.20 × 7,883.28
  4. Step 4: Simplify right side
    13,262.76x = 144,273,483.94
  5. Step 5: Solve for x
    x = 144,273,483.94/13,262.76
  6. Step 6: Final answer
    x = 10,878.09

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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.