Home / 13,529.04-20,242.52-7,985.40

Finding the Fourth Proportional to 13,529.04, 20,242.52 and 7,985.40

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Solution

The fourth proportional to 13,529.04, 20,242.52 and 7,985.40 is: 11,947.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,529.04 : 20,242.52 = 7,985.40 : x
  2. Step 2: Convert to fraction form
    13,529.04/20,242.52 = 7,985.40/x
  3. Step 3: Cross multiply
    13,529.04x = 20,242.52 × 7,985.40
  4. Step 4: Simplify right side
    13,529.04x = 161,644,619.21
  5. Step 5: Solve for x
    x = 161,644,619.21/13,529.04
  6. Step 6: Final answer
    x = 11,947.97

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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.