Home / 15,157.35-20,926.71-11,171.52

Finding the Fourth Proportional to 15,157.35, 20,926.71 and 11,171.52

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Solution

The fourth proportional to 15,157.35, 20,926.71 and 11,171.52 is: 15,423.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,157.35 : 20,926.71 = 11,171.52 : x
  2. Step 2: Convert to fraction form
    15,157.35/20,926.71 = 11,171.52/x
  3. Step 3: Cross multiply
    15,157.35x = 20,926.71 × 11,171.52
  4. Step 4: Simplify right side
    15,157.35x = 233,783,159.30
  5. Step 5: Solve for x
    x = 233,783,159.30/15,157.35
  6. Step 6: Final answer
    x = 15,423.75

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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.