Home / 9,513.26-13,128.99-5,322.86

Finding the Fourth Proportional to 9,513.26, 13,128.99 and 5,322.86

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Solution

The fourth proportional to 9,513.26, 13,128.99 and 5,322.86 is: 7,345.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,513.26 : 13,128.99 = 5,322.86 : x
  2. Step 2: Convert to fraction form
    9,513.26/13,128.99 = 5,322.86/x
  3. Step 3: Cross multiply
    9,513.26x = 13,128.99 × 5,322.86
  4. Step 4: Simplify right side
    9,513.26x = 69,883,775.71
  5. Step 5: Solve for x
    x = 69,883,775.71/9,513.26
  6. Step 6: Final answer
    x = 7,345.93

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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.