Home / 18,875.56-28,316.99-10,120.27

Finding the Fourth Proportional to 18,875.56, 28,316.99 and 10,120.27

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Solution

The fourth proportional to 18,875.56, 28,316.99 and 10,120.27 is: 15,182.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,875.56 : 28,316.99 = 10,120.27 : x
  2. Step 2: Convert to fraction form
    18,875.56/28,316.99 = 10,120.27/x
  3. Step 3: Cross multiply
    18,875.56x = 28,316.99 × 10,120.27
  4. Step 4: Simplify right side
    18,875.56x = 286,575,584.39
  5. Step 5: Solve for x
    x = 286,575,584.39/18,875.56
  6. Step 6: Final answer
    x = 15,182.36

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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.