Home / 13,516.42-18,650.90-8,807.08

Finding the Fourth Proportional to 13,516.42, 18,650.90 and 8,807.08

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Solution

The fourth proportional to 13,516.42, 18,650.90 and 8,807.08 is: 12,152.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.42 : 18,650.90 = 8,807.08 : x
  2. Step 2: Convert to fraction form
    13,516.42/18,650.90 = 8,807.08/x
  3. Step 3: Cross multiply
    13,516.42x = 18,650.90 × 8,807.08
  4. Step 4: Simplify right side
    13,516.42x = 164,259,968.37
  5. Step 5: Solve for x
    x = 164,259,968.37/13,516.42
  6. Step 6: Final answer
    x = 12,152.62

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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.