Home / 13,943.28-19,238.76-8,277.84

Finding the Fourth Proportional to 13,943.28, 19,238.76 and 8,277.84

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Solution

The fourth proportional to 13,943.28, 19,238.76 and 8,277.84 is: 11,421.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,943.28 : 19,238.76 = 8,277.84 : x
  2. Step 2: Convert to fraction form
    13,943.28/19,238.76 = 8,277.84/x
  3. Step 3: Cross multiply
    13,943.28x = 19,238.76 × 8,277.84
  4. Step 4: Simplify right side
    13,943.28x = 159,255,377.08
  5. Step 5: Solve for x
    x = 159,255,377.08/13,943.28
  6. Step 6: Final answer
    x = 11,421.66

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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.