Home / 14,388.60-21,574.10-5,613.40

Finding the Fourth Proportional to 14,388.60, 21,574.10 and 5,613.40

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Solution

The fourth proportional to 14,388.60, 21,574.10 and 5,613.40 is: 8,416.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,388.60 : 21,574.10 = 5,613.40 : x
  2. Step 2: Convert to fraction form
    14,388.60/21,574.10 = 5,613.40/x
  3. Step 3: Cross multiply
    14,388.60x = 21,574.10 × 5,613.40
  4. Step 4: Simplify right side
    14,388.60x = 121,104,052.94
  5. Step 5: Solve for x
    x = 121,104,052.94/14,388.60
  6. Step 6: Final answer
    x = 8,416.67

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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.