Home / 19,011.51-28,524.56-7,915.22

Finding the Fourth Proportional to 19,011.51, 28,524.56 and 7,915.22

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Solution

The fourth proportional to 19,011.51, 28,524.56 and 7,915.22 is: 11,875.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,011.51 : 28,524.56 = 7,915.22 : x
  2. Step 2: Convert to fraction form
    19,011.51/28,524.56 = 7,915.22/x
  3. Step 3: Cross multiply
    19,011.51x = 28,524.56 × 7,915.22
  4. Step 4: Simplify right side
    19,011.51x = 225,778,092.57
  5. Step 5: Solve for x
    x = 225,778,092.57/19,011.51
  6. Step 6: Final answer
    x = 11,875.86

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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.