Home / 18,725.31-28,092.15-7,038.63

Finding the Fourth Proportional to 18,725.31, 28,092.15 and 7,038.63

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Solution

The fourth proportional to 18,725.31, 28,092.15 and 7,038.63 is: 10,559.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,725.31 : 28,092.15 = 7,038.63 : x
  2. Step 2: Convert to fraction form
    18,725.31/28,092.15 = 7,038.63/x
  3. Step 3: Cross multiply
    18,725.31x = 28,092.15 × 7,038.63
  4. Step 4: Simplify right side
    18,725.31x = 197,730,249.75
  5. Step 5: Solve for x
    x = 197,730,249.75/18,725.31
  6. Step 6: Final answer
    x = 10,559.52

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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.