Home / 19,123.72-28,684.84-5,272.36

Finding the Fourth Proportional to 19,123.72, 28,684.84 and 5,272.36

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Solution

The fourth proportional to 19,123.72, 28,684.84 and 5,272.36 is: 7,908.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,123.72 : 28,684.84 = 5,272.36 : x
  2. Step 2: Convert to fraction form
    19,123.72/28,684.84 = 5,272.36/x
  3. Step 3: Cross multiply
    19,123.72x = 28,684.84 × 5,272.36
  4. Step 4: Simplify right side
    19,123.72x = 151,236,803.02
  5. Step 5: Solve for x
    x = 151,236,803.02/19,123.72
  6. Step 6: Final answer
    x = 7,908.34

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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.