Home / 10,155.90-15,232.28-3,580.55

Finding the Fourth Proportional to 10,155.90, 15,232.28 and 3,580.55

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Solution

The fourth proportional to 10,155.90, 15,232.28 and 3,580.55 is: 5,370.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,155.90 : 15,232.28 = 3,580.55 : x
  2. Step 2: Convert to fraction form
    10,155.90/15,232.28 = 3,580.55/x
  3. Step 3: Cross multiply
    10,155.90x = 15,232.28 × 3,580.55
  4. Step 4: Simplify right side
    10,155.90x = 54,539,846.09
  5. Step 5: Solve for x
    x = 54,539,846.09/10,155.90
  6. Step 6: Final answer
    x = 5,370.26

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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.