Home / 13,285.38-18,333.47-7,316.98

Finding the Fourth Proportional to 13,285.38, 18,333.47 and 7,316.98

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Solution

The fourth proportional to 13,285.38, 18,333.47 and 7,316.98 is: 10,097.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.38 : 18,333.47 = 7,316.98 : x
  2. Step 2: Convert to fraction form
    13,285.38/18,333.47 = 7,316.98/x
  3. Step 3: Cross multiply
    13,285.38x = 18,333.47 × 7,316.98
  4. Step 4: Simplify right side
    13,285.38x = 134,145,633.32
  5. Step 5: Solve for x
    x = 134,145,633.32/13,285.38
  6. Step 6: Final answer
    x = 10,097.24

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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.