Home / 8,479.06-11,700.78-4,702.26

Finding the Fourth Proportional to 8,479.06, 11,700.78 and 4,702.26

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Solution

The fourth proportional to 8,479.06, 11,700.78 and 4,702.26 is: 6,488.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,479.06 : 11,700.78 = 4,702.26 : x
  2. Step 2: Convert to fraction form
    8,479.06/11,700.78 = 4,702.26/x
  3. Step 3: Cross multiply
    8,479.06x = 11,700.78 × 4,702.26
  4. Step 4: Simplify right side
    8,479.06x = 55,020,109.76
  5. Step 5: Solve for x
    x = 55,020,109.76/8,479.06
  6. Step 6: Final answer
    x = 6,488.94

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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.