Home / 18,638.22-25,722.63-10,681.50

Finding the Fourth Proportional to 18,638.22, 25,722.63 and 10,681.50

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Solution

The fourth proportional to 18,638.22, 25,722.63 and 10,681.50 is: 14,741.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,638.22 : 25,722.63 = 10,681.50 : x
  2. Step 2: Convert to fraction form
    18,638.22/25,722.63 = 10,681.50/x
  3. Step 3: Cross multiply
    18,638.22x = 25,722.63 × 10,681.50
  4. Step 4: Simplify right side
    18,638.22x = 274,756,272.35
  5. Step 5: Solve for x
    x = 274,756,272.35/18,638.22
  6. Step 6: Final answer
    x = 14,741.55

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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.