Home / 12,577.15-18,873.51-7,314.63

Finding the Fourth Proportional to 12,577.15, 18,873.51 and 7,314.63

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Solution

The fourth proportional to 12,577.15, 18,873.51 and 7,314.63 is: 10,976.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,577.15 : 18,873.51 = 7,314.63 : x
  2. Step 2: Convert to fraction form
    12,577.15/18,873.51 = 7,314.63/x
  3. Step 3: Cross multiply
    12,577.15x = 18,873.51 × 7,314.63
  4. Step 4: Simplify right side
    12,577.15x = 138,052,697.33
  5. Step 5: Solve for x
    x = 138,052,697.33/12,577.15
  6. Step 6: Final answer
    x = 10,976.47

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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.