Home / 13,187.84-19,782.36-7,340.04

Finding the Fourth Proportional to 13,187.84, 19,782.36 and 7,340.04

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Solution

The fourth proportional to 13,187.84, 19,782.36 and 7,340.04 is: 11,010.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,187.84 : 19,782.36 = 7,340.04 : x
  2. Step 2: Convert to fraction form
    13,187.84/19,782.36 = 7,340.04/x
  3. Step 3: Cross multiply
    13,187.84x = 19,782.36 × 7,340.04
  4. Step 4: Simplify right side
    13,187.84x = 145,203,313.69
  5. Step 5: Solve for x
    x = 145,203,313.69/13,187.84
  6. Step 6: Final answer
    x = 11,010.40

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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.