Home / 13,762.62-18,992.40-7,475.00

Finding the Fourth Proportional to 13,762.62, 18,992.40 and 7,475.00

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Solution

The fourth proportional to 13,762.62, 18,992.40 and 7,475.00 is: 10,315.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,762.62 : 18,992.40 = 7,475.00 : x
  2. Step 2: Convert to fraction form
    13,762.62/18,992.40 = 7,475.00/x
  3. Step 3: Cross multiply
    13,762.62x = 18,992.40 × 7,475.00
  4. Step 4: Simplify right side
    13,762.62x = 141,968,095.04
  5. Step 5: Solve for x
    x = 141,968,095.04/13,762.62
  6. Step 6: Final answer
    x = 10,315.48

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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.