Home / 13,275.34-18,313.83-7,960.93

Finding the Fourth Proportional to 13,275.34, 18,313.83 and 7,960.93

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Solution

The fourth proportional to 13,275.34, 18,313.83 and 7,960.93 is: 10,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,275.34 : 18,313.83 = 7,960.93 : x
  2. Step 2: Convert to fraction form
    13,275.34/18,313.83 = 7,960.93/x
  3. Step 3: Cross multiply
    13,275.34x = 18,313.83 × 7,960.93
  4. Step 4: Simplify right side
    13,275.34x = 145,795,072.88
  5. Step 5: Solve for x
    x = 145,795,072.88/13,275.34
  6. Step 6: Final answer
    x = 10,982.40

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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.