Home / 18,703.10-28,060.47-5,555.54

Finding the Fourth Proportional to 18,703.10, 28,060.47 and 5,555.54

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Solution

The fourth proportional to 18,703.10, 28,060.47 and 5,555.54 is: 8,335.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,703.10 : 28,060.47 = 5,555.54 : x
  2. Step 2: Convert to fraction form
    18,703.10/28,060.47 = 5,555.54/x
  3. Step 3: Cross multiply
    18,703.10x = 28,060.47 × 5,555.54
  4. Step 4: Simplify right side
    18,703.10x = 155,891,063.50
  5. Step 5: Solve for x
    x = 155,891,063.50/18,703.10
  6. Step 6: Final answer
    x = 8,335.04

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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.