Home / 13,320.60-19,973.70-5,530.20

Finding the Fourth Proportional to 13,320.60, 19,973.70 and 5,530.20

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Solution

The fourth proportional to 13,320.60, 19,973.70 and 5,530.20 is: 8,292.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,320.60 : 19,973.70 = 5,530.20 : x
  2. Step 2: Convert to fraction form
    13,320.60/19,973.70 = 5,530.20/x
  3. Step 3: Cross multiply
    13,320.60x = 19,973.70 × 5,530.20
  4. Step 4: Simplify right side
    13,320.60x = 110,458,555.74
  5. Step 5: Solve for x
    x = 110,458,555.74/13,320.60
  6. Step 6: Final answer
    x = 8,292.31

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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.