Home / 14,911.13-20,579.21-8,623.51

Finding the Fourth Proportional to 14,911.13, 20,579.21 and 8,623.51

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Solution

The fourth proportional to 14,911.13, 20,579.21 and 8,623.51 is: 11,901.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,911.13 : 20,579.21 = 8,623.51 : x
  2. Step 2: Convert to fraction form
    14,911.13/20,579.21 = 8,623.51/x
  3. Step 3: Cross multiply
    14,911.13x = 20,579.21 × 8,623.51
  4. Step 4: Simplify right side
    14,911.13x = 177,465,023.23
  5. Step 5: Solve for x
    x = 177,465,023.23/14,911.13
  6. Step 6: Final answer
    x = 11,901.51

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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.