Home / 13,285.35-18,333.90-7,317.23

Finding the Fourth Proportional to 13,285.35, 18,333.90 and 7,317.23

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Solution

The fourth proportional to 13,285.35, 18,333.90 and 7,317.23 is: 10,097.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.35 : 18,333.90 = 7,317.23 : x
  2. Step 2: Convert to fraction form
    13,285.35/18,333.90 = 7,317.23/x
  3. Step 3: Cross multiply
    13,285.35x = 18,333.90 × 7,317.23
  4. Step 4: Simplify right side
    13,285.35x = 134,153,271.43
  5. Step 5: Solve for x
    x = 134,153,271.43/13,285.35
  6. Step 6: Final answer
    x = 10,097.83

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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.