Home / 13,285.32-18,334.57-7,316.99

Finding the Fourth Proportional to 13,285.32, 18,334.57 and 7,316.99

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Solution

The fourth proportional to 13,285.32, 18,334.57 and 7,316.99 is: 10,097.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.32 : 18,334.57 = 7,316.99 : x
  2. Step 2: Convert to fraction form
    13,285.32/18,334.57 = 7,316.99/x
  3. Step 3: Cross multiply
    13,285.32x = 18,334.57 × 7,316.99
  4. Step 4: Simplify right side
    13,285.32x = 134,153,817.20
  5. Step 5: Solve for x
    x = 134,153,817.20/13,285.32
  6. Step 6: Final answer
    x = 10,097.90

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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.