Home / 14,331.60-19,778.58-10,789.20

Finding the Fourth Proportional to 14,331.60, 19,778.58 and 10,789.20

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Solution

The fourth proportional to 14,331.60, 19,778.58 and 10,789.20 is: 14,889.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,331.60 : 19,778.58 = 10,789.20 : x
  2. Step 2: Convert to fraction form
    14,331.60/19,778.58 = 10,789.20/x
  3. Step 3: Cross multiply
    14,331.60x = 19,778.58 × 10,789.20
  4. Step 4: Simplify right side
    14,331.60x = 213,395,055.34
  5. Step 5: Solve for x
    x = 213,395,055.34/14,331.60
  6. Step 6: Final answer
    x = 14,889.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.