Home / 17,990.16-26,988.36-5,509.89

Finding the Fourth Proportional to 17,990.16, 26,988.36 and 5,509.89

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Solution

The fourth proportional to 17,990.16, 26,988.36 and 5,509.89 is: 8,265.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,990.16 : 26,988.36 = 5,509.89 : x
  2. Step 2: Convert to fraction form
    17,990.16/26,988.36 = 5,509.89/x
  3. Step 3: Cross multiply
    17,990.16x = 26,988.36 × 5,509.89
  4. Step 4: Simplify right side
    17,990.16x = 148,702,894.88
  5. Step 5: Solve for x
    x = 148,702,894.88/17,990.16
  6. Step 6: Final answer
    x = 8,265.79

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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.