Home / 13,079.60-19,619.40-9,753.20

Finding the Fourth Proportional to 13,079.60, 19,619.40 and 9,753.20

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Solution

The fourth proportional to 13,079.60, 19,619.40 and 9,753.20 is: 14,629.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,079.60 : 19,619.40 = 9,753.20 : x
  2. Step 2: Convert to fraction form
    13,079.60/19,619.40 = 9,753.20/x
  3. Step 3: Cross multiply
    13,079.60x = 19,619.40 × 9,753.20
  4. Step 4: Simplify right side
    13,079.60x = 191,351,932.08
  5. Step 5: Solve for x
    x = 191,351,932.08/13,079.60
  6. Step 6: Final answer
    x = 14,629.80

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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.