Home / 12,890.48-19,333.10-7,550.45

Finding the Fourth Proportional to 12,890.48, 19,333.10 and 7,550.45

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Solution

The fourth proportional to 12,890.48, 19,333.10 and 7,550.45 is: 11,324.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,890.48 : 19,333.10 = 7,550.45 : x
  2. Step 2: Convert to fraction form
    12,890.48/19,333.10 = 7,550.45/x
  3. Step 3: Cross multiply
    12,890.48x = 19,333.10 × 7,550.45
  4. Step 4: Simplify right side
    12,890.48x = 145,973,470.48
  5. Step 5: Solve for x
    x = 145,973,470.48/12,890.48
  6. Step 6: Final answer
    x = 11,324.13

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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.