Home / 11,133.12-15,366.33-7,356.45

Finding the Fourth Proportional to 11,133.12, 15,366.33 and 7,356.45

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Solution

The fourth proportional to 11,133.12, 15,366.33 and 7,356.45 is: 10,153.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,133.12 : 15,366.33 = 7,356.45 : x
  2. Step 2: Convert to fraction form
    11,133.12/15,366.33 = 7,356.45/x
  3. Step 3: Cross multiply
    11,133.12x = 15,366.33 × 7,356.45
  4. Step 4: Simplify right side
    11,133.12x = 113,041,586.99
  5. Step 5: Solve for x
    x = 113,041,586.99/11,133.12
  6. Step 6: Final answer
    x = 10,153.63

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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.