Home / 13,270.24-18,319.98-10,279.36

Finding the Fourth Proportional to 13,270.24, 18,319.98 and 10,279.36

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Solution

The fourth proportional to 13,270.24, 18,319.98 and 10,279.36 is: 14,190.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,270.24 : 18,319.98 = 10,279.36 : x
  2. Step 2: Convert to fraction form
    13,270.24/18,319.98 = 10,279.36/x
  3. Step 3: Cross multiply
    13,270.24x = 18,319.98 × 10,279.36
  4. Step 4: Simplify right side
    13,270.24x = 188,317,669.61
  5. Step 5: Solve for x
    x = 188,317,669.61/13,270.24
  6. Step 6: Final answer
    x = 14,190.98

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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.