Home / 13,658.34-20,487.57-4,297.98

Finding the Fourth Proportional to 13,658.34, 20,487.57 and 4,297.98

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Solution

The fourth proportional to 13,658.34, 20,487.57 and 4,297.98 is: 6,446.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,658.34 : 20,487.57 = 4,297.98 : x
  2. Step 2: Convert to fraction form
    13,658.34/20,487.57 = 4,297.98/x
  3. Step 3: Cross multiply
    13,658.34x = 20,487.57 × 4,297.98
  4. Step 4: Simplify right side
    13,658.34x = 88,055,166.11
  5. Step 5: Solve for x
    x = 88,055,166.11/13,658.34
  6. Step 6: Final answer
    x = 6,446.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.