Home / 11,429.94-15,865.81-11,153.46

Finding the Fourth Proportional to 11,429.94, 15,865.81 and 11,153.46

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Solution

The fourth proportional to 11,429.94, 15,865.81 and 11,153.46 is: 15,482.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,429.94 : 15,865.81 = 11,153.46 : x
  2. Step 2: Convert to fraction form
    11,429.94/15,865.81 = 11,153.46/x
  3. Step 3: Cross multiply
    11,429.94x = 15,865.81 × 11,153.46
  4. Step 4: Simplify right side
    11,429.94x = 176,958,677.20
  5. Step 5: Solve for x
    x = 176,958,677.20/11,429.94
  6. Step 6: Final answer
    x = 15,482.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.