Home / 13,270.43-18,313.49-7,302.35

Finding the Fourth Proportional to 13,270.43, 18,313.49 and 7,302.35

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Solution

The fourth proportional to 13,270.43, 18,313.49 and 7,302.35 is: 10,077.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.43 : 18,313.49 = 7,302.35 : x
  2. Step 2: Convert to fraction form
    13,270.43/18,313.49 = 7,302.35/x
  3. Step 3: Cross multiply
    13,270.43x = 18,313.49 × 7,302.35
  4. Step 4: Simplify right side
    13,270.43x = 133,731,577.74
  5. Step 5: Solve for x
    x = 133,731,577.74/13,270.43
  6. Step 6: Final answer
    x = 10,077.41

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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.