Home / 10,516.60-14,528.10-8,188.84

Finding the Fourth Proportional to 10,516.60, 14,528.10 and 8,188.84

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Solution

The fourth proportional to 10,516.60, 14,528.10 and 8,188.84 is: 11,312.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.60 : 14,528.10 = 8,188.84 : x
  2. Step 2: Convert to fraction form
    10,516.60/14,528.10 = 8,188.84/x
  3. Step 3: Cross multiply
    10,516.60x = 14,528.10 × 8,188.84
  4. Step 4: Simplify right side
    10,516.60x = 118,968,286.40
  5. Step 5: Solve for x
    x = 118,968,286.40/10,516.60
  6. Step 6: Final answer
    x = 11,312.43

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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.