Home / 13,285.28-18,335.14-7,317.56

Finding the Fourth Proportional to 13,285.28, 18,335.14 and 7,317.56

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Solution

The fourth proportional to 13,285.28, 18,335.14 and 7,317.56 is: 10,099.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.28 : 18,335.14 = 7,317.56 : x
  2. Step 2: Convert to fraction form
    13,285.28/18,335.14 = 7,317.56/x
  3. Step 3: Cross multiply
    13,285.28x = 18,335.14 × 7,317.56
  4. Step 4: Simplify right side
    13,285.28x = 134,168,487.06
  5. Step 5: Solve for x
    x = 134,168,487.06/13,285.28
  6. Step 6: Final answer
    x = 10,099.03

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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.