Home / 13,220.47-19,833.34-4,457.89

Finding the Fourth Proportional to 13,220.47, 19,833.34 and 4,457.89

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Solution

The fourth proportional to 13,220.47, 19,833.34 and 4,457.89 is: 6,687.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,220.47 : 19,833.34 = 4,457.89 : x
  2. Step 2: Convert to fraction form
    13,220.47/19,833.34 = 4,457.89/x
  3. Step 3: Cross multiply
    13,220.47x = 19,833.34 × 4,457.89
  4. Step 4: Simplify right side
    13,220.47x = 88,414,848.05
  5. Step 5: Solve for x
    x = 88,414,848.05/13,220.47
  6. Step 6: Final answer
    x = 6,687.72

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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.