Home / 13,285.35-18,334.01-7,316.60

Finding the Fourth Proportional to 13,285.35, 18,334.01 and 7,316.60

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Solution

The fourth proportional to 13,285.35, 18,334.01 and 7,316.60 is: 10,097.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.35 : 18,334.01 = 7,316.60 : x
  2. Step 2: Convert to fraction form
    13,285.35/18,334.01 = 7,316.60/x
  3. Step 3: Cross multiply
    13,285.35x = 18,334.01 × 7,316.60
  4. Step 4: Simplify right side
    13,285.35x = 134,142,544.19
  5. Step 5: Solve for x
    x = 134,142,544.19/13,285.35
  6. Step 6: Final answer
    x = 10,097.03

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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.