Home / 18,948.70-28,390.68-10,623.52

Finding the Fourth Proportional to 18,948.70, 28,390.68 and 10,623.52

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Solution

The fourth proportional to 18,948.70, 28,390.68 and 10,623.52 is: 15,917.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,948.70 : 28,390.68 = 10,623.52 : x
  2. Step 2: Convert to fraction form
    18,948.70/28,390.68 = 10,623.52/x
  3. Step 3: Cross multiply
    18,948.70x = 28,390.68 × 10,623.52
  4. Step 4: Simplify right side
    18,948.70x = 301,608,814.84
  5. Step 5: Solve for x
    x = 301,608,814.84/18,948.70
  6. Step 6: Final answer
    x = 15,917.13

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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.