Home / 15,190.54-20,947.60-10,154.76

Finding the Fourth Proportional to 15,190.54, 20,947.60 and 10,154.76

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Solution

The fourth proportional to 15,190.54, 20,947.60 and 10,154.76 is: 14,003.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,190.54 : 20,947.60 = 10,154.76 : x
  2. Step 2: Convert to fraction form
    15,190.54/20,947.60 = 10,154.76/x
  3. Step 3: Cross multiply
    15,190.54x = 20,947.60 × 10,154.76
  4. Step 4: Simplify right side
    15,190.54x = 212,717,850.58
  5. Step 5: Solve for x
    x = 212,717,850.58/15,190.54
  6. Step 6: Final answer
    x = 14,003.31

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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.