Home / 13,051.90-18,012.50-7,386.64

Finding the Fourth Proportional to 13,051.90, 18,012.50 and 7,386.64

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Solution

The fourth proportional to 13,051.90, 18,012.50 and 7,386.64 is: 10,194.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,051.90 : 18,012.50 = 7,386.64 : x
  2. Step 2: Convert to fraction form
    13,051.90/18,012.50 = 7,386.64/x
  3. Step 3: Cross multiply
    13,051.90x = 18,012.50 × 7,386.64
  4. Step 4: Simplify right side
    13,051.90x = 133,051,853
  5. Step 5: Solve for x
    x = 133,051,853/13,051.90
  6. Step 6: Final answer
    x = 10,194.06

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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.