Home / 18,862.14-28,293.36-5,715.54

Finding the Fourth Proportional to 18,862.14, 28,293.36 and 5,715.54

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Solution

The fourth proportional to 18,862.14, 28,293.36 and 5,715.54 is: 8,573.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,862.14 : 28,293.36 = 5,715.54 : x
  2. Step 2: Convert to fraction form
    18,862.14/28,293.36 = 5,715.54/x
  3. Step 3: Cross multiply
    18,862.14x = 28,293.36 × 5,715.54
  4. Step 4: Simplify right side
    18,862.14x = 161,711,830.81
  5. Step 5: Solve for x
    x = 161,711,830.81/18,862.14
  6. Step 6: Final answer
    x = 8,573.36

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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.