Home / 13,057.21-18,018.99-7,088.91

Finding the Fourth Proportional to 13,057.21, 18,018.99 and 7,088.91

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Solution

The fourth proportional to 13,057.21, 18,018.99 and 7,088.91 is: 9,782.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,057.21 : 18,018.99 = 7,088.91 : x
  2. Step 2: Convert to fraction form
    13,057.21/18,018.99 = 7,088.91/x
  3. Step 3: Cross multiply
    13,057.21x = 18,018.99 × 7,088.91
  4. Step 4: Simplify right side
    13,057.21x = 127,734,998.40
  5. Step 5: Solve for x
    x = 127,734,998.40/13,057.21
  6. Step 6: Final answer
    x = 9,782.72

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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.