Home / 8,275.92-11,417.79-5,291.47

Finding the Fourth Proportional to 8,275.92, 11,417.79 and 5,291.47

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Solution

The fourth proportional to 8,275.92, 11,417.79 and 5,291.47 is: 7,300.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,275.92 : 11,417.79 = 5,291.47 : x
  2. Step 2: Convert to fraction form
    8,275.92/11,417.79 = 5,291.47/x
  3. Step 3: Cross multiply
    8,275.92x = 11,417.79 × 5,291.47
  4. Step 4: Simplify right side
    8,275.92x = 60,416,893.25
  5. Step 5: Solve for x
    x = 60,416,893.25/8,275.92
  6. Step 6: Final answer
    x = 7,300.32

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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.