Home / 17,988.45-27,002.11-7,607.49

Finding the Fourth Proportional to 17,988.45, 27,002.11 and 7,607.49

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Solution

The fourth proportional to 17,988.45, 27,002.11 and 7,607.49 is: 11,419.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,988.45 : 27,002.11 = 7,607.49 : x
  2. Step 2: Convert to fraction form
    17,988.45/27,002.11 = 7,607.49/x
  3. Step 3: Cross multiply
    17,988.45x = 27,002.11 × 7,607.49
  4. Step 4: Simplify right side
    17,988.45x = 205,418,281.80
  5. Step 5: Solve for x
    x = 205,418,281.80/17,988.45
  6. Step 6: Final answer
    x = 11,419.45

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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.