Home / 19,018.48-28,536.36-9,790.96

Finding the Fourth Proportional to 19,018.48, 28,536.36 and 9,790.96

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Solution

The fourth proportional to 19,018.48, 28,536.36 and 9,790.96 is: 14,690.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,018.48 : 28,536.36 = 9,790.96 : x
  2. Step 2: Convert to fraction form
    19,018.48/28,536.36 = 9,790.96/x
  3. Step 3: Cross multiply
    19,018.48x = 28,536.36 × 9,790.96
  4. Step 4: Simplify right side
    19,018.48x = 279,398,359.31
  5. Step 5: Solve for x
    x = 279,398,359.31/19,018.48
  6. Step 6: Final answer
    x = 14,690.89

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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.