Home / 13,477.60-20,221.50-4,713.40

Finding the Fourth Proportional to 13,477.60, 20,221.50 and 4,713.40

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Solution

The fourth proportional to 13,477.60, 20,221.50 and 4,713.40 is: 7,071.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,477.60 : 20,221.50 = 4,713.40 : x
  2. Step 2: Convert to fraction form
    13,477.60/20,221.50 = 4,713.40/x
  3. Step 3: Cross multiply
    13,477.60x = 20,221.50 × 4,713.40
  4. Step 4: Simplify right side
    13,477.60x = 95,312,018.10
  5. Step 5: Solve for x
    x = 95,312,018.10/13,477.60
  6. Step 6: Final answer
    x = 7,071.88

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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.