Home / 13,285.61-18,333.49-7,317.53

Finding the Fourth Proportional to 13,285.61, 18,333.49 and 7,317.53

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Solution

The fourth proportional to 13,285.61, 18,333.49 and 7,317.53 is: 10,097.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,285.61 : 18,333.49 = 7,317.53 : x
  2. Step 2: Convert to fraction form
    13,285.61/18,333.49 = 7,317.53/x
  3. Step 3: Cross multiply
    13,285.61x = 18,333.49 × 7,317.53
  4. Step 4: Simplify right side
    13,285.61x = 134,155,863.08
  5. Step 5: Solve for x
    x = 134,155,863.08/13,285.61
  6. Step 6: Final answer
    x = 10,097.83

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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.