Home / 13,647.42-18,838.98-8,868.96

Finding the Fourth Proportional to 13,647.42, 18,838.98 and 8,868.96

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Solution

The fourth proportional to 13,647.42, 18,838.98 and 8,868.96 is: 12,242.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,647.42 : 18,838.98 = 8,868.96 : x
  2. Step 2: Convert to fraction form
    13,647.42/18,838.98 = 8,868.96/x
  3. Step 3: Cross multiply
    13,647.42x = 18,838.98 × 8,868.96
  4. Step 4: Simplify right side
    13,647.42x = 167,082,160.06
  5. Step 5: Solve for x
    x = 167,082,160.06/13,647.42
  6. Step 6: Final answer
    x = 12,242.77

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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.