Home / 13,039.70-19,551.45-7,490.30

Finding the Fourth Proportional to 13,039.70, 19,551.45 and 7,490.30

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Solution

The fourth proportional to 13,039.70, 19,551.45 and 7,490.30 is: 11,230.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,039.70 : 19,551.45 = 7,490.30 : x
  2. Step 2: Convert to fraction form
    13,039.70/19,551.45 = 7,490.30/x
  3. Step 3: Cross multiply
    13,039.70x = 19,551.45 × 7,490.30
  4. Step 4: Simplify right side
    13,039.70x = 146,446,225.94
  5. Step 5: Solve for x
    x = 146,446,225.94/13,039.70
  6. Step 6: Final answer
    x = 11,230.80

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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.