Home / 15,428.75-23,152.68-7,109.96

Finding the Fourth Proportional to 15,428.75, 23,152.68 and 7,109.96

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Solution

The fourth proportional to 15,428.75, 23,152.68 and 7,109.96 is: 10,669.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,428.75 : 23,152.68 = 7,109.96 : x
  2. Step 2: Convert to fraction form
    15,428.75/23,152.68 = 7,109.96/x
  3. Step 3: Cross multiply
    15,428.75x = 23,152.68 × 7,109.96
  4. Step 4: Simplify right side
    15,428.75x = 164,614,512.93
  5. Step 5: Solve for x
    x = 164,614,512.93/15,428.75
  6. Step 6: Final answer
    x = 10,669.34

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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.