Home / 13,270.24-18,313.20-7,302.40

Finding the Fourth Proportional to 13,270.24, 18,313.20 and 7,302.40

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Solution

The fourth proportional to 13,270.24, 18,313.20 and 7,302.40 is: 10,077.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.24 : 18,313.20 = 7,302.40 : x
  2. Step 2: Convert to fraction form
    13,270.24/18,313.20 = 7,302.40/x
  3. Step 3: Cross multiply
    13,270.24x = 18,313.20 × 7,302.40
  4. Step 4: Simplify right side
    13,270.24x = 133,730,311.68
  5. Step 5: Solve for x
    x = 133,730,311.68/13,270.24
  6. Step 6: Final answer
    x = 10,077.46

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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.