Home / 13,308.84-18,365.36-7,340.56

Finding the Fourth Proportional to 13,308.84, 18,365.36 and 7,340.56

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Solution

The fourth proportional to 13,308.84, 18,365.36 and 7,340.56 is: 10,129.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,308.84 : 18,365.36 = 7,340.56 : x
  2. Step 2: Convert to fraction form
    13,308.84/18,365.36 = 7,340.56/x
  3. Step 3: Cross multiply
    13,308.84x = 18,365.36 × 7,340.56
  4. Step 4: Simplify right side
    13,308.84x = 134,812,027.00
  5. Step 5: Solve for x
    x = 134,812,027.00/13,308.84
  6. Step 6: Final answer
    x = 10,129.51

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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.