Home / 13,285.02-18,333.18-7,316.57

Finding the Fourth Proportional to 13,285.02, 18,333.18 and 7,316.57

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Solution

The fourth proportional to 13,285.02, 18,333.18 and 7,316.57 is: 10,096.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.02 : 18,333.18 = 7,316.57 : x
  2. Step 2: Convert to fraction form
    13,285.02/18,333.18 = 7,316.57/x
  3. Step 3: Cross multiply
    13,285.02x = 18,333.18 × 7,316.57
  4. Step 4: Simplify right side
    13,285.02x = 134,135,903.13
  5. Step 5: Solve for x
    x = 134,135,903.13/13,285.02
  6. Step 6: Final answer
    x = 10,096.78

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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.