Home / 13,453.27-18,565.60-7,485.19

Finding the Fourth Proportional to 13,453.27, 18,565.60 and 7,485.19

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Solution

The fourth proportional to 13,453.27, 18,565.60 and 7,485.19 is: 10,329.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,453.27 : 18,565.60 = 7,485.19 : x
  2. Step 2: Convert to fraction form
    13,453.27/18,565.60 = 7,485.19/x
  3. Step 3: Cross multiply
    13,453.27x = 18,565.60 × 7,485.19
  4. Step 4: Simplify right side
    13,453.27x = 138,967,043.46
  5. Step 5: Solve for x
    x = 138,967,043.46/13,453.27
  6. Step 6: Final answer
    x = 10,329.61

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Double scale
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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.