Home / 14,420.04-19,900.20-8,132.28

Finding the Fourth Proportional to 14,420.04, 19,900.20 and 8,132.28

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Solution

The fourth proportional to 14,420.04, 19,900.20 and 8,132.28 is: 11,222.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,420.04 : 19,900.20 = 8,132.28 : x
  2. Step 2: Convert to fraction form
    14,420.04/19,900.20 = 8,132.28/x
  3. Step 3: Cross multiply
    14,420.04x = 19,900.20 × 8,132.28
  4. Step 4: Simplify right side
    14,420.04x = 161,833,998.46
  5. Step 5: Solve for x
    x = 161,833,998.46/14,420.04
  6. Step 6: Final answer
    x = 11,222.85

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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.