Home / 9,511.36-13,126.32-5,319.64

Finding the Fourth Proportional to 9,511.36, 13,126.32 and 5,319.64

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Solution

The fourth proportional to 9,511.36, 13,126.32 and 5,319.64 is: 7,341.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,511.36 : 13,126.32 = 5,319.64 : x
  2. Step 2: Convert to fraction form
    9,511.36/13,126.32 = 5,319.64/x
  3. Step 3: Cross multiply
    9,511.36x = 13,126.32 × 5,319.64
  4. Step 4: Simplify right side
    9,511.36x = 69,827,296.92
  5. Step 5: Solve for x
    x = 69,827,296.92/9,511.36
  6. Step 6: Final answer
    x = 7,341.46

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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.