Home / 19,189.13-28,800.09-7,510.55

Finding the Fourth Proportional to 19,189.13, 28,800.09 and 7,510.55

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Solution

The fourth proportional to 19,189.13, 28,800.09 and 7,510.55 is: 11,272.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,189.13 : 28,800.09 = 7,510.55 : x
  2. Step 2: Convert to fraction form
    19,189.13/28,800.09 = 7,510.55/x
  3. Step 3: Cross multiply
    19,189.13x = 28,800.09 × 7,510.55
  4. Step 4: Simplify right side
    19,189.13x = 216,304,371.95
  5. Step 5: Solve for x
    x = 216,304,371.95/19,189.13
  6. Step 6: Final answer
    x = 11,272.24

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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.