Home / 12,637.87-18,931.43-6,293.63

Finding the Fourth Proportional to 12,637.87, 18,931.43 and 6,293.63

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Solution

The fourth proportional to 12,637.87, 18,931.43 and 6,293.63 is: 9,427.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.87 : 18,931.43 = 6,293.63 : x
  2. Step 2: Convert to fraction form
    12,637.87/18,931.43 = 6,293.63/x
  3. Step 3: Cross multiply
    12,637.87x = 18,931.43 × 6,293.63
  4. Step 4: Simplify right side
    12,637.87x = 119,147,447.39
  5. Step 5: Solve for x
    x = 119,147,447.39/12,637.87
  6. Step 6: Final answer
    x = 9,427.81

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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.