Home / 13,285.25-18,333.20-7,316.91

Finding the Fourth Proportional to 13,285.25, 18,333.20 and 7,316.91

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Solution

The fourth proportional to 13,285.25, 18,333.20 and 7,316.91 is: 10,097.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.25 : 18,333.20 = 7,316.91 : x
  2. Step 2: Convert to fraction form
    13,285.25/18,333.20 = 7,316.91/x
  3. Step 3: Cross multiply
    13,285.25x = 18,333.20 × 7,316.91
  4. Step 4: Simplify right side
    13,285.25x = 134,142,392.70
  5. Step 5: Solve for x
    x = 134,142,392.70/13,285.25
  6. Step 6: Final answer
    x = 10,097.09

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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.