Home / 13,285.02-18,334.16-7,316.69

Finding the Fourth Proportional to 13,285.02, 18,334.16 and 7,316.69

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Solution

The fourth proportional to 13,285.02, 18,334.16 and 7,316.69 is: 10,097.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.02 : 18,334.16 = 7,316.69 : x
  2. Step 2: Convert to fraction form
    13,285.02/18,334.16 = 7,316.69/x
  3. Step 3: Cross multiply
    13,285.02x = 18,334.16 × 7,316.69
  4. Step 4: Simplify right side
    13,285.02x = 134,145,399.61
  5. Step 5: Solve for x
    x = 134,145,399.61/13,285.02
  6. Step 6: Final answer
    x = 10,097.49

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Double scale
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Similar ratio
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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.