Home / 13,057.22-18,018.80-7,088.97

Finding the Fourth Proportional to 13,057.22, 18,018.80 and 7,088.97

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Solution

The fourth proportional to 13,057.22, 18,018.80 and 7,088.97 is: 9,782.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,057.22 : 18,018.80 = 7,088.97 : x
  2. Step 2: Convert to fraction form
    13,057.22/18,018.80 = 7,088.97/x
  3. Step 3: Cross multiply
    13,057.22x = 18,018.80 × 7,088.97
  4. Step 4: Simplify right side
    13,057.22x = 127,734,607.10
  5. Step 5: Solve for x
    x = 127,734,607.10/13,057.22
  6. Step 6: Final answer
    x = 9,782.68

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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.