Home / 11,133.96-15,359.50-7,358.60

Finding the Fourth Proportional to 11,133.96, 15,359.50 and 7,358.60

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Solution

The fourth proportional to 11,133.96, 15,359.50 and 7,358.60 is: 10,151.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.96 : 15,359.50 = 7,358.60 : x
  2. Step 2: Convert to fraction form
    11,133.96/15,359.50 = 7,358.60/x
  3. Step 3: Cross multiply
    11,133.96x = 15,359.50 × 7,358.60
  4. Step 4: Simplify right side
    11,133.96x = 113,024,416.70
  5. Step 5: Solve for x
    x = 113,024,416.70/11,133.96
  6. Step 6: Final answer
    x = 10,151.32

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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.