Home / 13,062.90-18,043.22-10,953.06

Finding the Fourth Proportional to 13,062.90, 18,043.22 and 10,953.06

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Solution

The fourth proportional to 13,062.90, 18,043.22 and 10,953.06 is: 15,128.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,062.90 : 18,043.22 = 10,953.06 : x
  2. Step 2: Convert to fraction form
    13,062.90/18,043.22 = 10,953.06/x
  3. Step 3: Cross multiply
    13,062.90x = 18,043.22 × 10,953.06
  4. Step 4: Simplify right side
    13,062.90x = 197,628,471.25
  5. Step 5: Solve for x
    x = 197,628,471.25/13,062.90
  6. Step 6: Final answer
    x = 15,128.99

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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.