Home / 18,003.05-26,988.13-6,309.89

Finding the Fourth Proportional to 18,003.05, 26,988.13 and 6,309.89

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Solution

The fourth proportional to 18,003.05, 26,988.13 and 6,309.89 is: 9,459.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,003.05 : 26,988.13 = 6,309.89 : x
  2. Step 2: Convert to fraction form
    18,003.05/26,988.13 = 6,309.89/x
  3. Step 3: Cross multiply
    18,003.05x = 26,988.13 × 6,309.89
  4. Step 4: Simplify right side
    18,003.05x = 170,292,131.61
  5. Step 5: Solve for x
    x = 170,292,131.61/18,003.05
  6. Step 6: Final answer
    x = 9,459.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.