Home / 12,699.12-19,077.92-9,010.48

Finding the Fourth Proportional to 12,699.12, 19,077.92 and 9,010.48

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Solution

The fourth proportional to 12,699.12, 19,077.92 and 9,010.48 is: 13,536.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,699.12 : 19,077.92 = 9,010.48 : x
  2. Step 2: Convert to fraction form
    12,699.12/19,077.92 = 9,010.48/x
  3. Step 3: Cross multiply
    12,699.12x = 19,077.92 × 9,010.48
  4. Step 4: Simplify right side
    12,699.12x = 171,901,216.60
  5. Step 5: Solve for x
    x = 171,901,216.60/12,699.12
  6. Step 6: Final answer
    x = 13,536.47

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1.5x scale

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.