Home / 18,865.08-28,295.70-5,015.16

Finding the Fourth Proportional to 18,865.08, 28,295.70 and 5,015.16

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Solution

The fourth proportional to 18,865.08, 28,295.70 and 5,015.16 is: 7,522.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,865.08 : 28,295.70 = 5,015.16 : x
  2. Step 2: Convert to fraction form
    18,865.08/28,295.70 = 5,015.16/x
  3. Step 3: Cross multiply
    18,865.08x = 28,295.70 × 5,015.16
  4. Step 4: Simplify right side
    18,865.08x = 141,907,462.81
  5. Step 5: Solve for x
    x = 141,907,462.81/18,865.08
  6. Step 6: Final answer
    x = 7,522.23

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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.