Home / 8,488.29-12,718.60-5,194.47

Finding the Fourth Proportional to 8,488.29, 12,718.60 and 5,194.47

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Solution

The fourth proportional to 8,488.29, 12,718.60 and 5,194.47 is: 7,783.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,488.29 : 12,718.60 = 5,194.47 : x
  2. Step 2: Convert to fraction form
    8,488.29/12,718.60 = 5,194.47/x
  3. Step 3: Cross multiply
    8,488.29x = 12,718.60 × 5,194.47
  4. Step 4: Simplify right side
    8,488.29x = 66,066,349.68
  5. Step 5: Solve for x
    x = 66,066,349.68/8,488.29
  6. Step 6: Final answer
    x = 7,783.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.