Home / 13,723.79-18,938.98-8,058.61

Finding the Fourth Proportional to 13,723.79, 18,938.98 and 8,058.61

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Solution

The fourth proportional to 13,723.79, 18,938.98 and 8,058.61 is: 11,120.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,723.79 : 18,938.98 = 8,058.61 : x
  2. Step 2: Convert to fraction form
    13,723.79/18,938.98 = 8,058.61/x
  3. Step 3: Cross multiply
    13,723.79x = 18,938.98 × 8,058.61
  4. Step 4: Simplify right side
    13,723.79x = 152,621,758.17
  5. Step 5: Solve for x
    x = 152,621,758.17/13,723.79
  6. Step 6: Final answer
    x = 11,120.96

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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.