Home / 13,430.08-20,142.60-4,663.20

Finding the Fourth Proportional to 13,430.08, 20,142.60 and 4,663.20

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Solution

The fourth proportional to 13,430.08, 20,142.60 and 4,663.20 is: 6,993.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,430.08 : 20,142.60 = 4,663.20 : x
  2. Step 2: Convert to fraction form
    13,430.08/20,142.60 = 4,663.20/x
  3. Step 3: Cross multiply
    13,430.08x = 20,142.60 × 4,663.20
  4. Step 4: Simplify right side
    13,430.08x = 93,928,972.32
  5. Step 5: Solve for x
    x = 93,928,972.32/13,430.08
  6. Step 6: Final answer
    x = 6,993.93

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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.