Home / 13,640.24-18,830.28-10,277.84

Finding the Fourth Proportional to 13,640.24, 18,830.28 and 10,277.84

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Solution

The fourth proportional to 13,640.24, 18,830.28 and 10,277.84 is: 14,188.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,640.24 : 18,830.28 = 10,277.84 : x
  2. Step 2: Convert to fraction form
    13,640.24/18,830.28 = 10,277.84/x
  3. Step 3: Cross multiply
    13,640.24x = 18,830.28 × 10,277.84
  4. Step 4: Simplify right side
    13,640.24x = 193,534,605.00
  5. Step 5: Solve for x
    x = 193,534,605.00/13,640.24
  6. Step 6: Final answer
    x = 14,188.50

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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.