Home / 13,965.60-20,923.80-7,377.28

Finding the Fourth Proportional to 13,965.60, 20,923.80 and 7,377.28

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Solution

The fourth proportional to 13,965.60, 20,923.80 and 7,377.28 is: 11,052.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,965.60 : 20,923.80 = 7,377.28 : x
  2. Step 2: Convert to fraction form
    13,965.60/20,923.80 = 7,377.28/x
  3. Step 3: Cross multiply
    13,965.60x = 20,923.80 × 7,377.28
  4. Step 4: Simplify right side
    13,965.60x = 154,360,731.26
  5. Step 5: Solve for x
    x = 154,360,731.26/13,965.60
  6. Step 6: Final answer
    x = 11,052.93

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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.