Home / 13,160.80-19,724.28-6,220

Finding the Fourth Proportional to 13,160.80, 19,724.28 and 6,220

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Solution

The fourth proportional to 13,160.80, 19,724.28 and 6,220 is: 9,322.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,160.80 : 19,724.28 = 6,220 : x
  2. Step 2: Convert to fraction form
    13,160.80/19,724.28 = 6,220/x
  3. Step 3: Cross multiply
    13,160.80x = 19,724.28 × 6,220
  4. Step 4: Simplify right side
    13,160.80x = 122,685,021.60
  5. Step 5: Solve for x
    x = 122,685,021.60/13,160.80
  6. Step 6: Final answer
    x = 9,322.00

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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.