Home / 14,277.47-21,383.87-6,887.21

Finding the Fourth Proportional to 14,277.47, 21,383.87 and 6,887.21

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Solution

The fourth proportional to 14,277.47, 21,383.87 and 6,887.21 is: 10,315.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,277.47 : 21,383.87 = 6,887.21 : x
  2. Step 2: Convert to fraction form
    14,277.47/21,383.87 = 6,887.21/x
  3. Step 3: Cross multiply
    14,277.47x = 21,383.87 × 6,887.21
  4. Step 4: Simplify right side
    14,277.47x = 147,275,061.95
  5. Step 5: Solve for x
    x = 147,275,061.95/14,277.47
  6. Step 6: Final answer
    x = 10,315.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.