Home / 19,240.74-28,864.14-8,147.49

Finding the Fourth Proportional to 19,240.74, 28,864.14 and 8,147.49

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Solution

The fourth proportional to 19,240.74, 28,864.14 and 8,147.49 is: 12,222.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,240.74 : 28,864.14 = 8,147.49 : x
  2. Step 2: Convert to fraction form
    19,240.74/28,864.14 = 8,147.49/x
  3. Step 3: Cross multiply
    19,240.74x = 28,864.14 × 8,147.49
  4. Step 4: Simplify right side
    19,240.74x = 235,170,292.01
  5. Step 5: Solve for x
    x = 235,170,292.01/19,240.74
  6. Step 6: Final answer
    x = 12,222.52

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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.