Home / 12,637.06-18,956.43-5,242.12

Finding the Fourth Proportional to 12,637.06, 18,956.43 and 5,242.12

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Solution

The fourth proportional to 12,637.06, 18,956.43 and 5,242.12 is: 7,863.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.06 : 18,956.43 = 5,242.12 : x
  2. Step 2: Convert to fraction form
    12,637.06/18,956.43 = 5,242.12/x
  3. Step 3: Cross multiply
    12,637.06x = 18,956.43 × 5,242.12
  4. Step 4: Simplify right side
    12,637.06x = 99,371,833.44
  5. Step 5: Solve for x
    x = 99,371,833.44/12,637.06
  6. Step 6: Final answer
    x = 7,863.52

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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.