Home / 12,637.71-18,952.47-5,238.18

Finding the Fourth Proportional to 12,637.71, 18,952.47 and 5,238.18

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Solution

The fourth proportional to 12,637.71, 18,952.47 and 5,238.18 is: 7,855.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,637.71 : 18,952.47 = 5,238.18 : x
  2. Step 2: Convert to fraction form
    12,637.71/18,952.47 = 5,238.18/x
  3. Step 3: Cross multiply
    12,637.71x = 18,952.47 × 5,238.18
  4. Step 4: Simplify right side
    12,637.71x = 99,276,449.30
  5. Step 5: Solve for x
    x = 99,276,449.30/12,637.71
  6. Step 6: Final answer
    x = 7,855.57

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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.