Home / 15,035.10-20,756.76-11,256.90

Finding the Fourth Proportional to 15,035.10, 20,756.76 and 11,256.90

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Solution

The fourth proportional to 15,035.10, 20,756.76 and 11,256.90 is: 15,540.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,035.10 : 20,756.76 = 11,256.90 : x
  2. Step 2: Convert to fraction form
    15,035.10/20,756.76 = 11,256.90/x
  3. Step 3: Cross multiply
    15,035.10x = 20,756.76 × 11,256.90
  4. Step 4: Simplify right side
    15,035.10x = 233,656,771.64
  5. Step 5: Solve for x
    x = 233,656,771.64/15,035.10
  6. Step 6: Final answer
    x = 15,540.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.