Home / 13,507.29-18,637.26-8,199.15

Finding the Fourth Proportional to 13,507.29, 18,637.26 and 8,199.15

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Solution

The fourth proportional to 13,507.29, 18,637.26 and 8,199.15 is: 11,313.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,507.29 : 18,637.26 = 8,199.15 : x
  2. Step 2: Convert to fraction form
    13,507.29/18,637.26 = 8,199.15/x
  3. Step 3: Cross multiply
    13,507.29x = 18,637.26 × 8,199.15
  4. Step 4: Simplify right side
    13,507.29x = 152,809,690.33
  5. Step 5: Solve for x
    x = 152,809,690.33/13,507.29
  6. Step 6: Final answer
    x = 11,313.13

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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.