Home / 14,420.84-19,900.76-8,133.22

Finding the Fourth Proportional to 14,420.84, 19,900.76 and 8,133.22

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Solution

The fourth proportional to 14,420.84, 19,900.76 and 8,133.22 is: 11,223.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.84 : 19,900.76 = 8,133.22 : x
  2. Step 2: Convert to fraction form
    14,420.84/19,900.76 = 8,133.22/x
  3. Step 3: Cross multiply
    14,420.84x = 19,900.76 × 8,133.22
  4. Step 4: Simplify right side
    14,420.84x = 161,857,259.25
  5. Step 5: Solve for x
    x = 161,857,259.25/14,420.84
  6. Step 6: Final answer
    x = 11,223.84

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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.