Home / 13,490.08-20,177.04-9,749.92

Finding the Fourth Proportional to 13,490.08, 20,177.04 and 9,749.92

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Solution

The fourth proportional to 13,490.08, 20,177.04 and 9,749.92 is: 14,582.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,490.08 : 20,177.04 = 9,749.92 : x
  2. Step 2: Convert to fraction form
    13,490.08/20,177.04 = 9,749.92/x
  3. Step 3: Cross multiply
    13,490.08x = 20,177.04 × 9,749.92
  4. Step 4: Simplify right side
    13,490.08x = 196,724,525.84
  5. Step 5: Solve for x
    x = 196,724,525.84/13,490.08
  6. Step 6: Final answer
    x = 14,582.90

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1.5x scale

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.