Home / 9,511.96-13,126.86-5,320.24

Finding the Fourth Proportional to 9,511.96, 13,126.86 and 5,320.24

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Solution

The fourth proportional to 9,511.96, 13,126.86 and 5,320.24 is: 7,342.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,511.96 : 13,126.86 = 5,320.24 : x
  2. Step 2: Convert to fraction form
    9,511.96/13,126.86 = 5,320.24/x
  3. Step 3: Cross multiply
    9,511.96x = 13,126.86 × 5,320.24
  4. Step 4: Simplify right side
    9,511.96x = 69,838,045.65
  5. Step 5: Solve for x
    x = 69,838,045.65/9,511.96
  6. Step 6: Final answer
    x = 7,342.13

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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.