Home / 18,826.68-28,239.54-4,975.80

Finding the Fourth Proportional to 18,826.68, 28,239.54 and 4,975.80

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Solution

The fourth proportional to 18,826.68, 28,239.54 and 4,975.80 is: 7,463.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,826.68 : 28,239.54 = 4,975.80 : x
  2. Step 2: Convert to fraction form
    18,826.68/28,239.54 = 4,975.80/x
  3. Step 3: Cross multiply
    18,826.68x = 28,239.54 × 4,975.80
  4. Step 4: Simplify right side
    18,826.68x = 140,514,303.13
  5. Step 5: Solve for x
    x = 140,514,303.13/18,826.68
  6. Step 6: Final answer
    x = 7,463.57

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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.