Home / 13,335.54-20,015.34-7,100.76

Finding the Fourth Proportional to 13,335.54, 20,015.34 and 7,100.76

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Solution

The fourth proportional to 13,335.54, 20,015.34 and 7,100.76 is: 10,657.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.54 : 20,015.34 = 7,100.76 : x
  2. Step 2: Convert to fraction form
    13,335.54/20,015.34 = 7,100.76/x
  3. Step 3: Cross multiply
    13,335.54x = 20,015.34 × 7,100.76
  4. Step 4: Simplify right side
    13,335.54x = 142,124,125.66
  5. Step 5: Solve for x
    x = 142,124,125.66/13,335.54
  6. Step 6: Final answer
    x = 10,657.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.