Home / 17,991.03-26,988.35-5,510.91

Finding the Fourth Proportional to 17,991.03, 26,988.35 and 5,510.91

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Solution

The fourth proportional to 17,991.03, 26,988.35 and 5,510.91 is: 8,266.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,991.03 : 26,988.35 = 5,510.91 : x
  2. Step 2: Convert to fraction form
    17,991.03/26,988.35 = 5,510.91/x
  3. Step 3: Cross multiply
    17,991.03x = 26,988.35 × 5,510.91
  4. Step 4: Simplify right side
    17,991.03x = 148,730,340.34
  5. Step 5: Solve for x
    x = 148,730,340.34/17,991.03
  6. Step 6: Final answer
    x = 8,266.92

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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.