Home / 13,057.08-18,018.90-7,088.80

Finding the Fourth Proportional to 13,057.08, 18,018.90 and 7,088.80

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Solution

The fourth proportional to 13,057.08, 18,018.90 and 7,088.80 is: 9,782.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,057.08 : 18,018.90 = 7,088.80 : x
  2. Step 2: Convert to fraction form
    13,057.08/18,018.90 = 7,088.80/x
  3. Step 3: Cross multiply
    13,057.08x = 18,018.90 × 7,088.80
  4. Step 4: Simplify right side
    13,057.08x = 127,732,333.27
  5. Step 5: Solve for x
    x = 127,732,333.27/13,057.08
  6. Step 6: Final answer
    x = 9,782.61

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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.