Home / 13,525.22-18,688.65-10,408.34

Finding the Fourth Proportional to 13,525.22, 18,688.65 and 10,408.34

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Solution

The fourth proportional to 13,525.22, 18,688.65 and 10,408.34 is: 14,381.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,525.22 : 18,688.65 = 10,408.34 : x
  2. Step 2: Convert to fraction form
    13,525.22/18,688.65 = 10,408.34/x
  3. Step 3: Cross multiply
    13,525.22x = 18,688.65 × 10,408.34
  4. Step 4: Simplify right side
    13,525.22x = 194,517,823.34
  5. Step 5: Solve for x
    x = 194,517,823.34/13,525.22
  6. Step 6: Final answer
    x = 14,381.86

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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.