Home / 13,637.15-18,824.63-8,600.37

Finding the Fourth Proportional to 13,637.15, 18,824.63 and 8,600.37

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Solution

The fourth proportional to 13,637.15, 18,824.63 and 8,600.37 is: 11,871.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,637.15 : 18,824.63 = 8,600.37 : x
  2. Step 2: Convert to fraction form
    13,637.15/18,824.63 = 8,600.37/x
  3. Step 3: Cross multiply
    13,637.15x = 18,824.63 × 8,600.37
  4. Step 4: Simplify right side
    13,637.15x = 161,898,804.61
  5. Step 5: Solve for x
    x = 161,898,804.61/13,637.15
  6. Step 6: Final answer
    x = 11,871.89

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.