Home / 13,460.32-20,190.80-7,602.40

Finding the Fourth Proportional to 13,460.32, 20,190.80 and 7,602.40

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Solution

The fourth proportional to 13,460.32, 20,190.80 and 7,602.40 is: 11,403.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,460.32 : 20,190.80 = 7,602.40 : x
  2. Step 2: Convert to fraction form
    13,460.32/20,190.80 = 7,602.40/x
  3. Step 3: Cross multiply
    13,460.32x = 20,190.80 × 7,602.40
  4. Step 4: Simplify right side
    13,460.32x = 153,498,537.92
  5. Step 5: Solve for x
    x = 153,498,537.92/13,460.32
  6. Step 6: Final answer
    x = 11,403.78

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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.