Home / 13,270.53-18,313.55-7,302.81

Finding the Fourth Proportional to 13,270.53, 18,313.55 and 7,302.81

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Solution

The fourth proportional to 13,270.53, 18,313.55 and 7,302.81 is: 10,078.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.53 : 18,313.55 = 7,302.81 : x
  2. Step 2: Convert to fraction form
    13,270.53/18,313.55 = 7,302.81/x
  3. Step 3: Cross multiply
    13,270.53x = 18,313.55 × 7,302.81
  4. Step 4: Simplify right side
    13,270.53x = 133,740,339.56
  5. Step 5: Solve for x
    x = 133,740,339.56/13,270.53
  6. Step 6: Final answer
    x = 10,078.00

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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.