Home / 13,261.72-18,300.80-7,293.39

Finding the Fourth Proportional to 13,261.72, 18,300.80 and 7,293.39

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Solution

The fourth proportional to 13,261.72, 18,300.80 and 7,293.39 is: 10,064.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,261.72 : 18,300.80 = 7,293.39 : x
  2. Step 2: Convert to fraction form
    13,261.72/18,300.80 = 7,293.39/x
  3. Step 3: Cross multiply
    13,261.72x = 18,300.80 × 7,293.39
  4. Step 4: Simplify right side
    13,261.72x = 133,474,780.21
  5. Step 5: Solve for x
    x = 133,474,780.21/13,261.72
  6. Step 6: Final answer
    x = 10,064.67

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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.